She _____her keys in the office so she had to wait until her husband ____home.
A. has left; comes
B. had left; would come
C. had left; came
D. left; had come
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We ______ Xiao Li since she was a little girl.
A. know
B. had known
C. have known
D. Knew
Harry Potter is a very nice film .I_______ it twice.
A. will see
B. have seen
C. saw
D. See
-These farmers have been to the United States.-Really ? When _____ there ?
A. will they go
B. did they go
C. do they go
D. have they gone
The young girl sitting next to me on the plane was very nervous . She ______ before .
A. hasn't flown
B. didn't fly
C. hadn't flown
D. wasn't flying