单项选择题

The number of computers in the library()twenty.

A.is
B.are
C.have been
D.be

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单项选择题

I()you not to move my dictionary. Now I can't find it.

A.asked
B.ask
C.was asking
D.had asked

单项选择题

The house is cold here. A () candle can hardly make it warm.

A.light
B.lighted
C.being light
D.lighting

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