— I hate talking with that guy. Look, he is ing. What should I do?
— Don’t speak until .
A. speaking
B. spoken to
C. spoken
D. speaking to
网友回答
A. speaking
(答案→)B. spoken to
C. spoken
D. speaking to
解析：本题的答语部分是一个省略句。完整的结构应是: Don’t speak until you are spoken to.。