单项选择题

Without the worker's help, Sam ______ so much progress.

A. would not make
B. would not have made
C. will not make
D. did not make
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单项选择题
The forest guards often find campfires that have not been ______ completely.
A. turned down
B. put out
C. put away
D. turned over
单项选择题
______, he must be totally exhausted after a two weeks' trip by bus.
A. Being very strong
B. As a strong man
C. Strong as he is
D. As he is strong
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