单项选择题

I don't know ______ I can come or not.

A．whether
B．if
C．that
D．what
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He is the man ______ car was stolen last night.
A．who
B．whom
C．whose
D．which
单项选择题
So far, she ______ her holiday very much.
A．has not enjoyed
B．did not enjoy
C．doesn't enjoy
D．was not enjoying
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