Let’s stop a rest. I am so tired.A. havingB. to haveC. havingD. had

问题补充：

Let’s stop a rest. I am so tired.

A. having

B. to have

C. having

D. had

答案：

A. having

(答案→)B. to have

C. having

D. had

解析：句意：让我们停下来去休息一下，我太累了。stop 后可以跟两种形式，stop to do sth.停下来去做，stop doing sth 停止做。因为I am so tired.，所以应是停下来正在做的去休息，故选不定式C。