Question

【题目】—You’d better ask Mr Wang for help when _______ problems.

—I see, but I’m not sure when _______ time.

A. you have； having B. having； he has

C. to have； he has D. to have； having

Answer 1

【答案】B

【解析】

试题分析：句意：当你有问题时你最好向王先生寻求帮助。我明白了，但我不确定他什么时候有时间。当你有困难时：when you have problems或when having problems；have time：有空，有时间；结合句意可知选B。