Choose the best answer.
He ________ his homework before he went to the cinema.
A. has done
B. had done
C. did
D. was doing
Giải bởi Vietjack
Hành động xảy ra trước chia ở thì quá khứ hoàn thành.
Hành động xảy ra sau chia ở thì quá khứ đơn.
Công thức: Before S + Ved/V2, S + had + Ved/V3
=>He had done his homework before he went to the cinema.
Tạm dịch: Anh ấy làm bài tập về nhà trước khi đi xem phim.
Đáp án cần chọn là: B
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