问题补充:
---I am going to Beijing during the coming summer holiday.
--- Great ! You about our capital well then.
A. will be knowing
B. will have known
C. have known
D. have been knowing
答案:
(答案→)A. will be knowing
B. will have known
C. have known
D. have been knowing
解析:句意:--在将要到来的暑假期间,我去北京。--好的,那时你就能了解我们的首都了。根据am going to Beijing可知还没有去北京,故排除CD;then指的是将来在北京的时候,表示将来某个时候正在做某事,故选A。