when they leave for beijing答案好想错了 想问下..when _ they _ leave for beijing A.are;going B.will;/是A还是B.

问题描述:

when they leave for beijing
答案好想错了 想问下..
when _ they _ leave for beijing
A.are;going B.will;/
是A还是B.

b

B
如果是A的话,going后面要有to

选B 如果改A的话 要在哪going后边加to 翻译为:他们将要什么时候启程去北京

B