单项选择题

It is only when you nearly lose something______you will fully realize how much you value it.

A. before
B. that
C. do
D. will
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You rarely have breakfast at home, ______you
A. do
B. don’t
C. have
D. haven’t
单项选择题
He pointed to the fact______they were not there.
A. that
B. what
C. which
D. /
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