A. snowed
B. was snowing
C. has been snowing
D. snows
Câu diễn tả hành động đang diễn ra trong quá khứ thì có một hành động khác xảy ra xen vào.
Hành động xen vào chia ở thì quá khứ đơn. Hành động đang xảy ra chia ở thì quá khứ tiếp diễn.
=>It was snowing when I got up this morning.
Tạm dịch: Trời đang có tuyết khi tôi thức dậy vào sáng nay .
Đáp án cần chọn là: B
A. attend
B. was attending
C. attended
D. will attend
A. did you do
B. were you doing
C. do you do
D. have you done
A. was reading/ was listening
B. was reading/listened
C. read/listened
D. read/was listening
A. snowed
B. was snowing
C. has been snowing
D. snows
A. plays
B. has been playing
C. played
D. was playing
A. ran
B. are running
C. was running
D. were running
A. wasn’t stopping/crossed
B. wasn’t stopping/were crossing
C. didn’t stop/crossed
D. didn’t stop/ were crossing
A. were you doing/ rained
B. were you doing/ was raining
C. did you do/was raining
D. did you do/ had been
A. would buy
B. was buying
C. bought
D. had bought