Choose the best answer.
When we _______(cross) the street, we saw an accident.
A. have been crossing
B. had been crossing
C. were crossing
D. crossed
Giải bởi qa.haylamdo.com
Hành động xen vào chia ở thì quá khứ đơn. Hành động đang xảy ra chia ở thì quá khứ tiếp diễn.
Công thức: when + S was/were + V-ing, S + Ved/ V2,
=>When we were crossing the street, we saw an accident.
Tạm dịch: Khi chúng tôi đang băng qua đường, chúng tôi đã nhìn thấy 1 vụ tai nạn.
Đáp án cần chọn là: C
Choose the best answer.
At this time last year, I _______(attend) an English course.
Choose the best answer.
It _________(snow) when I got up this morning.
Choose the best answer.
At this time last year, my sister ______ a new car.
Choose the best answer.
While my father ________(read) books, my brother ________(listen) to music.
Choose the best answer.
What __________(you/do) when it __________(rain)all day before?
Choose the best answer.
While he was doing homework, his sister _______(learn) English.
Choose the best answer.
When his wife ________(arrive) at this house, he still ________(sleep).
Choose the best answer.
The car _________(not/stop) as we ____________(cross) the road.
Choose the best answer.
Faker suddenly _______(sit) down on the chair when I ________(paint) it.
Choose the best answer.
He _________ at college at that time last year.
Choose the best answer.
Marry ____________(wait) in the lobby, wasn’t she?
