Youarenotallowed________unless

发布时间：2020-07-28 10:40:30

You are not allowed ________ unless you ________ to e beck before 9 o'clock.A.to go out, will promiseB.going out, promiseC.to go out, promiseD.going out, will promise

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C解析导解：本题考查be allowed to do…，另外条件从句中以现在时表将来．
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