练习册

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    题目列表(包括答案和解析)

    Turn off the water while you ________ your teeth or washing your hands.
    A．were brushingB．brush
    C．are brushingD．brushed

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    —Turn off the light when you leave, Tom?
    —Mum, I see. Our world ______ energy now.
    [     ]
    A. needs
    B. is short of
    C. cares for
    D. wants

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    Turn off the radio, please. Your sister, Alice ______ her homework now. 　

    [     ]

    A. is doing　　　
    B. did 　　　
    C. will do　　　
    D. does

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     Turn off the tap. Look at the sign______.It says Save water, please..

    A.        B.          C.    D. 

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    —Please turn off the TV. The baby ______.

    —OK. I’ll go out for a walk.

    A. sleeps　　 B. slept　　 C. is sleeping　　 D. was sleeping

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