37.I didn't see your sister at the meeting. If she__________, she would have met my brother.
A. has come
B. did come
C. came
D. had come
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38.It was so noisy that I couldn't make myself__________clearly.
A. being heard
B. hearing
C. heard
D. listen
39.This pair of trousers__________too long for me. Please show me another.
A. are
B. were
C. is
D. was
40.He said he could swim across the river,__________.
A. so could I
B. either did I
C. he said such
D. such did he
按照句意选择下列词组填入空格内go wrong in advance in this way suffer from change …for know aboutbe likely tothanks to carry out ask sb. for