单项选择题

There's a knock at the door. Who () be

A.must be
B.must it
C.can he
D.can it

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单项选择题

My mother bought me a new pair of pants on my birthday () she had promised.

A.which
B.what
C.with
D.as

单项选择题

Turner almost () that he hadn't told him that bad news, but all was too late.

A.wished
B.hoped
C.believed
D.realized

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