Thekeyforopeningthedoorofthero

The key ____ for opening the door of the room.

A．uses

B．is using

C．is used

D．used

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— . He always gets good scores on his math exams.

A．does he； Yes， he does	B．doesn't he； Yes， he does
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A．which； call	B．that； to calling
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C．a second longest	D．the second long

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—Yes. Please remember it to him when you finish the words.

A．to return； to look up	B．to return； looking up
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—I'm not sure. It be Flora's.

A．might

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C．must

D．need

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