speak用法

来源：学生作业帮编辑：大师作文网作业帮分类：英语作业时间：2024/11/15 22:15:30

John, don't speak ______.　 [　　] A． when you are speaking to B． while you are speaking to C． until you are spoken to D． when you are spoken

解题思路：如下
解题过程：
John, don't speak ______.　
A． when you are speaking to
B． while you are speaking to
C． until you are spoken to
D． when you are spoken
答案为C。根据句意：约翰，直到有人跟你说话你才说。
not...until直到....才 you are spoken to为被动语态，主动语态为Don't speak until somebody speaks to you.此句也常以省略形式考查 (省略you are)：Don't speak until spoken to.
A B 选项为时间状语从句，speak to 与某人讲话，需接宾语sb.
D.项speak表示与某人讲话，是不及物动词，无论主动语态还是被动语态，都需加介词to
Don't speak unless you are asked to(speak)
不要讲话除非有人要你讲。
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最终答案：略

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