赞题库-背景图
单项选择题

He talks as if he ______ everything.

A．knows
B．was known
C．will know
D．knew
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热门试题

单项选择题Mary's dress cost ______ Alice's.

A．twice more
B．two times more as
C．twice as much as
D．twice as more

单项选择题She tried hard, ______ she was unsuccessful.

A．therefore
B．but
C．or
D．unless