Question

In the following question, each sentence has four words or phrases in braces marked A, B, C and D. Choose one word or phrase that must be changed for the sentence to be correct.
Drug abuse {have} (A) become {one of} (B) our {most} (C) serious social {problems}. (D)

• A. A
• B. B
• C. C
• D. D

Answer 1

The Correct Option is A

Step 1 — Read the sentence carefully:
"Drug abuse {have} (A) become {one of} (B) our {most} (C) serious social {problems} (D)."

Step 2 — Identify the subject and verb:
The subject is "Drug abuse." This is singular because "abuse" is an uncountable noun in this context. Therefore, the verb must also be singular.

Step 3 — Check the verb form:
The sentence currently uses "have," which is a plural verb form. For a singular subject like "Drug abuse," the correct verb should be "has."

Step 4 — Verify the rest of the sentence:
- (B) "one of" is correct.
- (C) "most" is correct in emphasizing seriousness.
- (D) "problems" is also correct as it is plural in context.

Step 5 — Correction:
The verb "have" must be changed to "has" to agree with the singular subject.

Final Answer:
The correct option is (A) : A.