单项选择题

It is not until 1997（）he entered university.

A．which
B．that
C．when
D．since

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单项选择题
Smith（）a book about China last year, but I don't know whether he has finished it.

A．has wrote
B．wrote
C．had written
D．was writing
单项选择题
Her daughter was admitted into college（）we had hoped.

A．which
B．that
C．as
D．like
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