Dont speak until to.A. spokenB. speakC. speakingD. to speak

发布时间：2020-08-17 15:01:31

Don't speak until      to.
A. spoken
B. speak
C. speaking
D. to speak

网友回答

(答案→)A. spoken
B. speak
C. speaking
D. to speak
解析：这里用过去分词表示被动，这是一个省略句，省略了you are…
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