题目内容

While _____ the book， he nodded from time to time.

A. reading
B. read
C. is reading
D. is read

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He would have given you more help， if he ________ so busy.

A. have not been
B. had not been
C. not have been
D. not had been

Younger children are curious ________ how things workㄛand many of them want to take

A. of
B. about
C. at
D. with

With such a poor score in the entrance exam， it‘s ________ impossible for him to be

A. roughly
B. absolutely
C. fully
D. exclusively

We promise that we‘ll meet again after we _______ our college education in three years’ time.

A. finish
B. will finish
C. finished
D. will have finished