单项选择题

It is reported that there in no better ______ for human's hands.

A) alternative
B) equivalence
C) exchange
D) substitute
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单项选择题
Tom, one of my students, had his term paper ______ as soon as he finished ______ it.
A) to be typed, to write
B) being typed, writing
C) typed, to write
D) typed, writing
单项选择题
My car ______ yesterday.
A) broke out
B) broke down
C) broke up
D) broke of
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