单项选择题

It was not until he closed the door ______ he ______ he forgot Io take the keys with him.

A．that, realized
B．did, realize
C．which, realized
D．when, realized
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单项选择题
The pen is very expensive but it ______ well.
A．is not
B．is not written
C．is not being written
D．does not write
单项选择题
A man in love often compares his love ______ a rose, hurting but sweet and beautiful,
A．with
B．to
C．like
D．as
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