Question

— Mr. Smith joined in different activities in Beijing. Do you know ___________?

— Since 5 years ago.

A. when he went there B. how long he has stayed there

C. how soon he will come back D. when he will come here

 

Answer 1

B

【解析】

试题分析：句意：史密斯先生在北京参加了不同的活动。你知道他在那儿呆多久了吗？自从5年前。根据答语Since 5 years ago可知该选B。

考点：考查特殊问句。