Correct Answer is: to have believe

Option (a) contains an error.

Detailed explanation of error: After to have, we require the past participle (V3) to form the perfect infinitive.

So, to have believe ✗ should be to have believed ✓.

The perfect infinitive is appropriate because the believing happened before the time of realisation ( I was).

Corrected sentence: How foolish I was to have believed that young woman! (You could also use the simple infinitive to believe for a general comment, but the exam tests V3 after “to have”.)

Grammatical rule used: Perfect infinitive = to have + V3, showing an action earlier than the time expressed by the main verb.

Example: She was lucky to have escaped the fire.

Information booster: We often use the perfect infinitive after evaluative adjectives ( foolish, wise, fortunate, careless) to show the earlier action: It was careless to have left the door open.

The correct option is (a) addresses.

Step-by-step explanation:

• The word addresses can be used correctly in both sentences because it works with two related usages of the same form: as a plural noun and as a verb.
• Sentence 1: “I am not aware of any of his ______” — Here, addresses functions as a plural noun meaning locations/residential details (postal addresses). (Hindi meaning: पता/पते)
• Sentence 2: “The PM of India ______ the nation...” — Here, addresses functions as a verb meaning speaks to or delivers a speech to an audience. (Hindi meaning: संबोधित करना/भाषण देना)
• Thus, the same word fits both contexts naturally and grammatically.

Examples:

• Noun: Please write your complete addresses on the form.
• Verb: The President addresses the citizens during national events.

Why other options are incorrect:

• Option (B) name: It can fit sentence 1 (“any of his name” is incorrect; it should be “any of his names” or “his name”). It also does not fit sentence 2 (“PM of India name the nation” is ungrammatical). (Hindi meaning: नाम)
• Option (C) talks: It can fit sentence 2 (“talks to the nation”) but sentence 1 becomes incorrect (“aware of any of his talks” changes meaning and sounds unnatural in this context). (Hindi meaning: बातें/भाषण)
• Option (D) introduce: It does not fit sentence 1 and is grammatically wrong for sentence 2 (“PM ... introduce the nation” is incorrect). (Hindi meaning: परिचय कराना)

So the correct answer is (a)

Correct Answer is: Hinder

Expedite means to make a process happen more quickly or to speed up progress. It is commonly used in formal contexts for faster processing or completion (तेज़ करना/शीघ्र करना).

Example: The officer promised to expedite the approval of the document.

Hinder means to delay, obstruct, or make progress difficult. It directly opposes the meaning of expedite (बाधा डालना/रोकना).

Example: Heavy traffic can hinder timely arrival.

Synonyms (Expedite): accelerate, hasten, speed up, facilitate.

Antonyms (Expedite): hinder, delay, obstruct, slow.

Meanings of all the other given options:

• B: Succeed means to achieve the desired aim (सफल होना). It is not the opposite of expedite.
• C: Speed means to move fast (गति). It is similar, not opposite.
• D: Exceed means to go beyond a limit (से अधिक होना). It is unrelated to expediting.

So the correct answer is (a)

Correct Answer is: “I used to visit my grandparents during holidays,” he said.

Explanation:

The given sentence is in Indirect Speech: He said that he used to visit his grandparents during holidays.

To convert to Direct Speech, we apply these rules:

• Remove the conjunction that.
• Convert pronoun: he (reported subject) becomes I in the spoken words, as the speaker is referring to himself.
• Keep the habitual past meaning: used to in indirect speech remains used to in direct speech because it expresses a past habit.
• Place quotation marks and keep the reporting clause.

Hence, the correct direct speech is: “I used to visit my grandparents during holidays,” he said.

Why other options are incorrect:

• Option (a): “I visited” shows a single past action, not a past habit.
• Option (b): “use to” is grammatically incorrect; the correct form is used to.
• Option (d): “was visiting” indicates past continuous action, not a repeated habit.

So the correct answer is (c)

Correct Answer is: Pantheism

Pantheism is the belief that God is present in nature and that the universe and God are essentially the same. It treats the entire universe as a manifestation of the divine (प्रकृति में ईश्वर की सर्वव्यापकता का सिद्धांत).

Example: Pantheism teaches that divinity exists in every part of nature, including rivers, mountains, and living beings.

Meanings of the other options:

• B: Atheism means disbelief in the existence of God (नास्तिकता).
• C: Feminism means the belief in and advocacy of equal rights for women (नारीवाद).
• D: Cynicism means distrust of human sincerity and a belief that people act mainly for selfish reasons (निंदक दृष्टिकोण/संशयवाद).

So the correct answer is (a)

Correct Answer is: is responsible of

Explanation of error:

· The correct preposition used with “responsible” is “for”, not “of”.

· Responsible for means “having the duty/charge of something” (किसी काम/जिम्मेदारी के लिए उत्तरदायी). Hence, “responsible of” is grammatically incorrect here.

Grammatical rule used:

· Responsible + for + noun/gerund (काम/कर्तव्य/परिणाम के लिए जिम्मेदार)

· Responsible + to + person/authority (किसी के प्रति जवाबदेह)

Correct sentence:

· The senior officer is responsible for the entire marketing department.

Example (rule-based):

· She is responsible for managing the team. (वह टीम को संभालने के लिए जिम्मेदार है।)

Correct Answer is: Strengthen

Step-by-step explanation:

• The word consolidate means to make something stronger, more solid, or more stable by combining parts or by reinforcing it. It is also used for bringing things together into a single, more effective whole. (Hindi meaning: मजबूत करना/सुदृढ़ करना/एकीकृत करना)
• A suitable synonym must carry the core idea of making strong, firm, or stable.
• Strengthen means to make stronger or more effective. (Hindi meaning: मजबूत करना) This matches the meaning of consolidate most closely.

Example (given word): The manager tried to consolidate the company’s position in the market.

Example (correct synonym): Daily practice will strengthen your English grammar.

Synonyms: reinforce, fortify, solidify, stabilize.

Antonyms: weaken, undermine, loosen, destabilize.

Meanings of all the other given options:

• Option (A) Enliven: To make something more lively or interesting. (Hindi meaning: रोचक बनाना/जीवंत करना)
• Option (B) Segregate: To separate or set apart. (Hindi meaning: अलग करना/विभाजित करना)
• Option (D) Collect: To gather items together. (Hindi meaning: इकट्ठा करना)

So the correct answer is (c)

Correct Answer is: He asked where I had submitted the report.

Explanation:

The given sentence is an interrogative sentence (Wh-question) in direct speech: “Where have you submitted the report?” When converting a Wh-question into indirect speech, the following rules apply:

• Reporting verb: “said” changes to asked because the sentence is a question.
• Question form changes to statement form: In indirect speech, we do not use auxiliary inversion (no “have you / did you” structure). The order becomes subject + verb.
• Backshift of tense: Present Perfect (“have submitted”) changes to Past Perfect (“had submitted”) because the reporting verb is in the past (“said”).
• No question mark: Indirect speech is written as a statement, not as a direct question.

Correct transformation:

He asked where I had submitted the report.

Why other options are incorrect:

• (b) “where had I submitted” shows incorrect inversion in indirect speech; indirect questions follow statement word order.
• (c) “have submitted” does not follow the required tense backshift after a past reporting verb.
• (d) “where did I submit” uses “did” and maintains direct-question structure, which is incorrect in indirect speech.

So the correct answer is (a)

The correct meaning of the given idiom is (b) Immediately.

Given idiom – At the drop of a hat: This idiom means doing something instantly, without hesitation, or at once as soon as an opportunity arises.

(Hindi meaning: तुरंत / बिना देर किए)

Example: He is ready to help at the drop of a hat.

Why option (b) is correct: “Immediately” matches the idea of acting without delay.

Other related idioms:

• In no time – Very quickly (तुरंत)
• On the spot – Immediately at that moment (तत्काल)
• Without batting an eyelid – Without hesitation (बिना हिचकिचाए)

Meanings of all the other given options:

• Clearly – In an understandable way (स्पष्ट रूप से)
• In the end – Finally (अंत में)
• Lacking in confidence – Not self-assured (आत्मविश्वास की कमी)

So the correct answer is (b)

Correct Answer: C) dabc

Explanation:

• (d) introduces the topic with a strong claim about soft drinks and bone health → good opening
• (a) immediately counters that claim → “No…” fits as a response
• (b) explains the real reason using “However” → logical contrast and continuation
• (c) adds another supporting factor → “In addition…” shows extension

Final Sequence:

d → a → b → c

Constructed Paragraph:

Every time a child consumes a soft drink, he lays the foundation for a potentially fatal bone disorder. No, carbonated and sugary beverages do not cause osteoporosis. However, because they are frequently substituted for a glass of milk, children are not receiving enough calcium and vitamin D to maintain healthy bones. In addition to leading a sedentary lifestyle, many of them are not receiving the bone-building benefits of intense exercise.

Conclusion:

The sequence is logically connected with claim → correction → explanation → addition, making Option C correct.