I _____ along the road when suddenly someone patted me on the shoulder from behind.
A. walked
B. had walked
C. was walking
D. would walk
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It is said that he _____ sent to Australia to improve his English.
A. would be
B. was to be
C. has been
D. had been
By this time next year, we _____ all the land into rice field.
A. had turned
B. will have turned
C. have turned
D. have been turning
Thousands of people took part in the work when the Three Gorges Project (三峡工程) _____ .
A. would be built
B. was building
C. was being built
D. had been built
The sick man _____ to hospital right away.
A. must be sent
B. will send
C. ought be sent
D. must send
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