My teacher is usually late for class, but he has been on time this week. The headmaster ……….. him some advice.

My teacher is usually late for class, but he has been on time this week. The headmaster ……….. him some advice.

A.            Has to give

B.            Ought to have given

C.            Would have given

D.            Might give

E.            Must have given

JAWABAN NYA ADALAH :  E