The correct option is option 4 i.e. D.

• The sentence is in passive form as the students are the receiver of an action. 
• The sentence reflects the action done in past.
• Therefore, in the passive form, the past participle changes into Subject + was/were + past participle.
• Hence, it should be “was done”.

The correct sentence will be: The beautiful stage decoration at an event in school was done by the students.

The correct answer is option 1 i.e. from gold.

Rule:

Made of → Reversible (Material remains the same)

Made from → Irreversible (Material undergoes a chemical change)

Explanation:

'Made of' is used when the material's identity remains unchanged.

Example: A ring is made of gold (Gold remains gold).

'Made from' is used when the material undergoes a transformation.

Example: Paper is made from wood (Wood changes into paper).

Since gold remains gold in a ring, made of gold is correct.

So, the correct sentence will be: This beautiful ring is made of gold.

The correct answer is option 1 i.e. such a big radish.

• "Such a + adjective + noun" is the correct phrase.
• Here, the adjective is big.
• Hence, the chosen option will be correct.

The correct sentence will be-

Anju, who bought a huge radish said, "I have never seen such a big radish".

The correct answer is option 2 i.e. Somebody narrated the incident to Naresh.

• The sentence is an assertive sentence.
• It is in the Simple Past Tense.
• Structure:
  • Passive: Object + was/were + verb (IIIrd form) + by + subject...
  • Active: Subject + verb (IInd form) + object...
• The correct form of passive voice is: Somebody narrated the incident to Naresh.

The correct answer is Sunita said to his friend, “you have been ill since Monday.”

Explanation:

The given sentence is in Indirect Speech and we need to change it to Direct Speech.

Reported sentence:

Sunita told his friend that he was ill since Monday.

Here, the action started in the past and continues up to the present, so the correct tense in Direct Speech should be Present Perfect Continuous.

Hence: “you have been ill since Monday.” is correct.

Other options are incorrect because:

“you were ill” → simple past, does not show continuation.

“you are ill” → present tense, doesn’t reflect the duration.

“you were being ill” → grammatically incorrect.

The correct answer is option 1 i.e. Scream.

• The meaning of the word 'Squawk' is 'to make a loud unpleasant noise'.
• Scream means to cry out loudly in a high voice.

The meaning of the other options given are as follows:

1. Suggest- To mention a plan or an idea that you have for somebody to discuss or consider.
2. Explore- To travel around a place, etc. in order to learn about it.
3. Connote- Imply or suggest.

The words Scream and Squawk have nearly similar meanings. Hence, are synonyms.

The correct answer is option 1 i.e. Simple.

1. Enigmatic: difficult to interpret or understand; mysterious.
2. Simple: easily understood or done; presenting no difficulty.
   • Example: A few simple precautions will help to ensure that you are not disappointed.

Meaning of other words:

• Multiplex: having many features or forms.
• Tangled: twisted together untidily; matted.
• Convoluted: (especially of an argument, story, or sentence) extremely complex and difficult to follow.

As the chosen option expresses the opposite meaning of the given word it will be correct.

The correct answer is option 2 i.e. Gigantic.

1. Gigantic means extremely big.
2. Miniscule means extremely small.

• Meaning of other words:
  • Dwarf means a person, animal or plant that is much smaller than the usual size.
  • Small means not large in size, number, amount, etc.
  • Meagre means too small in amount.

As the chosen option expresses the opposite meaning of the given word it will be correct.

The correct answer is option 2 i.e. Stay.

Let's have a look at the meaning of the given words-

1. Digress- to temporarily wander or stray from your original plan or thought
2. Stay- to continue to be somewhere and not go away; remain in a specified state or position.
3. Stray- move away aimlessly from a group or from the right course or place.
4. Deviate- to stray especially from a standard, principle, or topic.
5. Drift- (of a person or their attention) digress or stray to another subject.

As the chosen option expresses the opposite meaning of the given word it will be correct.

The correct answer is option 2 i.e. Pretend to regard.

The idiom "paying lip service" means to say something without actually being committed to it or putting effort into it.

So, the correct meaning of the idiom "pay lip service" is: Pretend to regard.