If your call is not answered within two minutes, you(advise)______ to hang up an

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问题 If your call is not answered within two minutes, you(advise)______ to hang up and dial again.

选项

答案 are advised

解析 本题考查被动语态的用法。根据句意可以判断主语you和动词advise之间是被动关系,所以用动词的被动式be advised。本句的从句使用了一般现在时,表示一般情况下的条件,所以主句也要用一般现在时。因此留空处需要填入are advised。
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