单项选择题

Mary got a cold so she（）stay in bed right now.

A．can
B．may
C．needs
D．could

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单项选择题
（）you keep on practicing English, you can use it freely one day.

A． As long as
B．As soon as
C．As well as
D．As possible as
单项选择题
This is（）place that I have ever been to in my life.

A．the better
B．a good
C．the best
D．a better
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