John said that he if you help him. I will if I have time.A. wonders canB. knows couldC

问题补充：

John said that he if you help him.

I will if I have time.

A. wonders, can

B. knows, could

C. wondered, could

D. knew, can

答案：

A. wonders, can

B. knows, could

(答案→)C. wondered, could

D. knew, can

解析：句意:-John说他想知道你是否会帮助他。-如果我有时间，我会的。本题考查的是宾语从句，因为主句中said 用的是过去时态，所以宾语从句中也应该使用过去时，第二个空也一样。故可排除A、B和D。选C。