THE LECTURER LAST NIGHT DIDN’T KNOW WHAT HE WAS...

6. - CAU DKIEN LOAI 1 2 3
CAU DKIEN LOAI 1 2 3

6. The lecturer last night didn’t know what he was talking about, but if Dr.

Mason………., I would have listened carefully.

A. had been lecturing

B. was lecturing

C. would lecture

D. lectured