—AreyougoingtoBeijingforthesummerholidaynextweek?—Yes.B...

问题详情：

—Are you going to Beijing for the summer holiday next week?

—Yes. But I haven't got the air tickets and don't know ________ we will set out.

A. how                B. where              C. when               D. what

【回答】

C

知识点：连词

题型：选择题