--AreyougoingtoBeijingforthesummerholidaynextweek?    ...

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