摘要： If you have any questions, please .

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If you have any questions, please ____ your hands.

A.
put down
B.
put off
C.
put into
D.
put up

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If you have any questions, please __________ me.

A. answer
B. teach
C. help
D. ask

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If you have any questions, please put ________ your hands.

[　　]

A．down

B．on

C．up

D．off

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If you have any questions, please ____ your hands.

[　　]

A．put down

B．put off

C．put into

D．put up

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______ you have any questions, please ______ your hand.

[ ]

　　A. If, raise B. Because, raise

　　C. If, rise D. /, rise 查看习题详情和答案>>