Question

MANY A STUDENT-----(has/have)made the same mistake.

Answer 1

Mamy a student has made the same mistake.

Plz mark as brainlist.

Answer 2

Many a student ____ ( has/have ) made the same mistake.

This sentence is an example for Subject-Verb agreement.

According to  Subject-verb agreement, both the subject and the verb should agree to each other, meaning either both subject and verb should be singular or both should be plural.

So, in the above sentence, "Student" clearly indicates singular noun, which goes only with  "has".

Therefore, the answer would be,

Many a student has made the same mistake.