Out of the options given below, choose the sentence which is grammatically incorrect:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → The number of cars on the road have increased significantly.
"The number of" and "a number of":
- The number of + plural noun means the total count; the subject is "number", which is singular, so the verb is singular.
- A number of + plural noun means many, and takes a plural verb.
- This sentence: the subject is "the number", so "have increased" should be "has increased".
Corrected: The number of cars on the road has increased significantly.
Example: The number of students in the school has doubled.
Why the Other Options are Incorrect?
Option 2: We have a meeting tonight. — Incorrect. Correct use: the plural subject "we" takes "have".
Option 3: Have you made the necessary changes? — Incorrect. Correct use: a present perfect question (have + subject + past participle).
Option 4: This is outrageous. — Incorrect. Correct use: subject, verb "is" and the adjective "outrageous" (shocking and unacceptable).