单项选择题

They didn’t (realize) how serious the problem was．

A．know
B．forget
C．doubt
D．remembe
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单项选择题
The (last) few weeks have been enjoyable．
A．close
B．near
C．past
D．seVeral
单项选择题
There are only five minutes left，but the outcome of the match is still in doubt．
A．resuh
B．judgment
C．estimation
D．even
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