Select the most appropriate option that can substitute the highlighted segment in the given sentence. If there is no need to substitute it, select ‘No substitution’.
The teacher asked the students to be quite during the exam.

Correct option is B

The correct substitution of the highlighted words is (b) be quiet.
Explanation: The word “quite” (meaning completely or to a certain extent) is incorrect in this sentence.
The correct word should be “ quiet,” which means silence or absence of noise.
The verb "be" followed by the adjective "quiet" is grammatically correct to give a command or request.
Grammatical rule used:
Use “be + adjective” to form imperative sentences requesting a state or condition.
Example:
· Be careful.
· Be quiet during the test.
�� Grammar Booster:
“Quite” is often confused with “quiet.”
· Quite = completely/entirely (e.g., quite interesting)
· Quiet = silent (e.g., be quiet)
Other options are incorrect because:
· (a) No substitution – Incorrect as “quite” is wrongly used.
· (c) have quiet – Grammatically awkward and incorrect.
· (d) been quiet – Past participle form; doesn't fit the structure of an imperative sentence.