37.Sally couldn't have written to him, or he__________received her letter.
A. has
B. had
C. would have
D. could have
查看答案
38.It will take a long time__________around the country.
A. to travelling
B. to travel
C. travel
D. travelling
39.Not only I but also Jane and Mary__________tired of having one examination after another.
A. is
B. are
C. am
D. be
40.After that we never saw her again, nor__________from her.
A. did we hear
B. we heard
C. had we heard
D. we have heard
按照句意选择下列词组填入空格内take place go on at least instead of look up plenty of a part of out ofat the end of talk about