问题描述：
There were 200 people present at the meeting.
本句可改为：1、There were 200 people to be present at the meeting.2、There were 200 people being present at the meeting.这两种句形吗?如果不可以为什么?
本句可改为：1、There were 200 people to be present at the meeting.2、There were 200 people being present at the meeting.这两种句形吗?如果不可以为什么?
问题解答：
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