—I don’t suppose they could have finishe

问题选择题

—I don’t suppose they could have finished their experiment, they?

— , they are still doing it in the lab.

A．could; Yes

B．didn’t; No

C．have; No

D．couldn’t; Yes

答案

答案：C

本题考查反义疑问句。句中主语为第一人称，且为否定，故从句为否定转移，故用have they.句意：——我认为他们不可能完成他们的实验，是吗？——是的，他们仍然在实验室做实验。