If the Watergate Incident______Nixon would not have resigned from the presidency.
A. did not occur
B. was not occurring
C. had not occurred
D. be occurring
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The teacher suggested that her students_____experiences with ESP.
A. to write composition about the
B. write a composition on their
C. wrote some compositions of his or her
D. had written any compositions for his
He speaks Chinese as fluently as if he ______a Chinese.
A. had been
B. were
C. is
D. has been
Looking round the town, he felt as though he______ away for ages.
A. has been
B. was
C. had been
D. is
At that thought he shook himself, as though he____ from an evil dream.
A. woke
B. wakes
C. had woke
D. would wake
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