21.Shirley ________ a book about China last year but I don’t know whether she has finished.
A. has written
B. wrote
C. had written
D. was writing
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22.—Have you got your test result?Not yet.The papers ________.
A. are not correcting
B. have not corrected
C. are still being corrected
D. have already been corrected
23.See the clouds! It ________ rain!
A. will
B. is going to
C. must
D. certainly
24.Do I have to take this medicine? It ________ so terrible.
A. tastes
B. is tasting
C. is tasted
D. has tasted
25.Don’t take the magazine away.It ________ me.
A. is belonged to
B. belongs to
C. was belonged to
D. is belonging to
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