单项选择题

Only when we have weighted all the factors involved()decide when would be the best time to start.

A. did we
B. we did
C. can we
D. we can

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单项选择题
To achieve his heart's desire, he is racing the clock all the time. He is not the man()he was two years ago.

A. which
B. that
C. who
D. whom
单项选择题
He stood in the door-way, his wet cloak water on the rug, and waited for some sign of recognition.()

A. drip
B. dripping
C. dripped
D. drips
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