这道题为什么不能选A?
The chairman asked __ to write their questions on a piece of paper and send them to the front.
A. the present members B. the members presently
C. the members present D. the presently members
这道题的答案是C,为什么不能选A呢?A也说得过去啊.请详细解释一下,谢谢!