The correct answer is option (3) i.e. 'a'.

Key Points

• The use of "a" before "letter" is appropriate because it signifies a single, unspecified letter.
• This indefinite article is used because the letter is being mentioned for the first time, and its specific identity is not known to the listeners/readers.

Therefore, So, the complete sentence is: "Vikram wrote a letter to his university yesterday but he forgot to post it."

The correct answer is 'Option 3'.

Key Points

• The structure places 'nothing' as the subject, 'ever happens' as the verb phrase, and 'by chance' as the adverbial phrase indicating the manner in which things do not happen.
• This sentence follows a logical sequence, stating a philosophical or existential viewpoint that events do not occur randomly or without cause.

Therefore, the correct answer is- 'Nothing ever happens by chance.'

The correct answer is 'Option 4' i.e. 'B, D, A, C'.

Key Points

• When rearranged in this order, the sentence reads:
  • ​The sentence structure follows a logical order that introduces the subject (Wilhelm Rontgen), the action (discovered), and the object of the discovery (a new type of ray) along with the ray's capabilities.

Therefore, the correct answer is- 'In 1895, Wilhelm Rontgen discovered a new type of ray that could penetrate objects, including human tissue.'

The correct answer is 'Option 2'.

Key Points

• Superlative degree comparisons are used to compare one entity with all others in the same category.
• The sentence "Iron is the most useful of all the metals" correctly places the superlative phrase 'the most useful' adjacent to 'Iron'(subject) to clearly indicate that Iron is being compared to all other metals in terms of usefulness.

Therefore, the correct answer is- 'Iron is the most useful of all the metals.'

The correct answer is Option (2) "Rakesh ordered Mahesh to go away".

Key Points

• The reported speech has a sense of order and not question or inquiry.
• It is so because Rakesh is ordering Mahesh that he should leave.
• Therefore, asked and inquired cannot be used in the case of ordering.
• In the case of imperative sentences we use 'to' instead of 'that' as a linker.
• 'Say to' cannot be used because the reported verb should be in past tense and not in present tense.

Therefore, the correct indirect speech of the given sentence is Rakesh ordered Mahesh to go away.

The correct answer is 'Option 3 i.e.(too)'

Key Points

• The correct word to use in this context is "too," which means to a higher degree than is desirable, permissible, or possible; excessively.
• Therefore, the sentence should read, "The water from the river was too cold for me to drink directly."
• This makes Option 3 (too) the correct choice to fill the blank.

Therefore, the correct sentence is: "The water from the river was too cold for me to drink directly."

The correct answer is 'The formal letter has a subject, while the informal letter does not have a subject'.

Key Points

• A formal letter is an official letter.
• It is written in the formal or official language.
• It is short and only the necessary information is given.
• The format of a formal letter is as follows:
  • Sender's address
  • Date
  • Receiver's address
  • The subject of the letter
  • Salutation
  • Body of the letter
  • Conclusion
  • Signature
• An informal letter is an unofficial letter.
• It is written in an informal or personal language.
• It is lengthy and personal information is given.
• The format of an informal letter is as follows:
  • Sender's address
  • Date
  • Salutation
  • Body of the letter
  • Conclusion
  • Signature

Therefore the correct answer is option D.

The most appropriate option to substitute the underlined segment is:

c) ours

Explanation:

• The original phrase "our car's" is grammatically incorrect in this context because it redundantly uses a possessive form ("car's") after the possessive pronoun "our."

• "Ours" is the correct possessive pronoun, meaning "belonging to us." It eliminates redundancy and fits naturally:

  • Corrected sentence: "The parking spot next to your car is ours."

Why Not Other Options?

• a) our's: Incorrect. "Our's" is not a valid word in English.

• b) our cars': Incorrect. This implies ownership by multiple cars (e.g., "our cars' tires"), not people.

• d) No substitution required: Incorrect. The original phrasing is awkward and grammatically flawed.

Key Takeaway:

Use "ours" to concisely convey possession without repetition.

Answer: (c) ours

The correct answer is '​as soon as I boarded the bus.'

Key Points

• The clause is somewhere in the middle of sentences and phrases.
• The clause has a definite subject, meaning, predicate, and verb.
• There are Two Different Types of Clauses:
  • Independent Clause: It is also called a principal clause. It has both a subject and a verb, it can also act as a sentence. These cannot be simply used as nouns, adverbs or adjectives as they act as a sentence.
    • Example: She is intelligent.
  • Dependent Clause: It is also known as a subordinate clause, it requires an independent clause to provide the complete meaning of the sentence. This dependent clause consists of a verb, subject and a predicate but they cannot act as a sentence instead they need the support of an independent clause.
    • Example: He cried because he fell down the stairs.
• ​Let us check the given options:
  • Asked me to call her: Structure has Verb + Object
  • To call her: Structure has Preposition + Verb
  • Asked me to call her as soon as: Structure has Verb + as soon as
  • As soon as I boarded the bus.: Structure has As soon as + Subject + Verb + Object
• So, the option 4 is a dependent clause because it needs the independent clause "My mom asked me to call her" to the provide the complete meaning.
• Therefore, the correct answer is Option 4.

The correct answer is option 3) i.e. 'Circulate'.

Key Points

• Let's look at the meaning of the given word:
  • Disseminate- to spread or give out something, especially news, information, ideas, etc., to a lot of people. ( फैलाना, प्रसारित करना)
• Let's look at the meaning of the correct answer:
  • Circulate- to send something such as information, ideas, or documents from one person to another. (प्रसारित करना)
• Clearly, the word 'Circulate' is closest in meaning to the given word 'Disseminate'.
• Therefore, the correct synonym of the given word is 'Circulate'.