He talks as if he all the work himself, but in fact Tom and I did most of it.
He talks as if he _____ all the work himself, but in fact Tom and I did most of it.
A. was doing
B. had done
C. did
D. have done
Đáp án B
Dịch: Anh ta nói như thể mình đã tự làm hết công việc vậy, nhưng trên thực tế thì tôi và Tom làm hầu hết mọi việc
