问题描述：
【非谓语】求讲解.“How many students,do you think.
“How many students,do you think,will be present at hre meeting?”
“I expect（ ）20 students at the meeting.”
A.there being
B.there to be
C.there be
D.there been
答案选B,虽然我做题目的时候也选B,但是还是有些糊涂,CD两项不能选,我应该是知道了,那A项为什么不能选呢?还有,我能不能在括号里添“that there will be”?
“How many students,do you think,will be present at hre meeting?”
“I expect（ ）20 students at the meeting.”
A.there being
B.there to be
C.there be
D.there been
答案选B,虽然我做题目的时候也选B,但是还是有些糊涂,CD两项不能选,我应该是知道了,那A项为什么不能选呢?还有,我能不能在括号里添“that there will be”?
问题解答：
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