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单项选择题

Why ______ you come a little earlier

A．do
B．not
C．don't

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热门试题

单项选择题There is ______ s in the word sense .

A．a
B．/
C．an

单项选择题Mike hit ______ and he fell down on the ground.

A．Tom on the head
B．on Tom's head
C．at Tom's head