How many studengts, do you think, will be present at the meeting?--I expect ___20 students at themeeting.A.there being B.there to be C.there be D.there been 求解释

问题描述:

How many studengts, do you think, will be present at the meeting?--I expect ___20 students at the
meeting.
A.there being B.there to be C.there be D.there been 求解释