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Select the statement that correctly shows subject-verb agreement.




ASome students underestimate their capabilities.


BCertain topics is more difficult to write about than others.


CThe online community allow students to talk easily.


DThe school library are a helpful resource for students.

Verified Answer :

the correct answer is A. Some students underestimate their capabilities.
Just to let you know why:
In B. the verb is singular and the subject is plural.
In C. the subject is singular and the verb is plural.
In D. the subject is singular and the verb is plural.