— I hate talking with that guy. Look he is coming. What should I do?— Don’t speak until .

问题补充：

— I hate talking with that guy. Look, he is coming. What should I do?

— Don’t speak until .

A. speaking

B. spoken to

C. spoken

D. speaking to

答案：

A. speaking

(答案→)B. spoken to

C. spoken

D. speaking to

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