17.—Is this raincoat yours?No,mine ________ there behind the door.
A. is hanging
B. has hang
C. hangs
D. hang
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18.I turned around and saw everybody ________ at a man who ________ loudly in a foreign language.
A. was staring; was shouting
B. was staring; shouting
C. staring; shouting
D. stared; shouted
19.Henry remained silent for a moment.He ________.
A. thought
B. had thought
C. was thinking
D. was thought
20.We would like to go and thank him ourselves,but we __ out his address yet,
A. haven’t found
B. hadn’t found
C. didn’t find
D. don’t find
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