单项选择题

It is much ______ to go up than it is to come down.

A. hard
B. harder
C. hardest
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单项选择题
I wanted to know when they______come to see me.
A. will
B. would
C. should
单项选择题
Every morning, we are asked ______ taken our temperatures.
A. if we have
B. if have we
C. if we had
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