问题补充:
All but one____take part in the conference____tomorrow.
A. is going to; that is to take place
B. are going to; that is about to take place
C. are going to; that is to be taken place
D. are going to; which is to be held
答案:
A. is going to; that is to take place
B. are going to; that is about to take place
C. are going to; that is to be taken place
(答案→)D. are going to; which is to be held
解析:all but one 主语是all,且all在此指人,故谓语动词用复数;take place 属不及物动词短语,无被动语态;be about to后面不能跟具体的时间状语。