题目内容
20、Lily was so badly ill, as was known to us all, that she couldn’t help the meeting room.
A．clean B．cleaning C．being cleaning D．to be cleaned
试题答案
20、D
相关题目
Lily was so badly ill, as was known to us all, that she couldn't help ________ the meeting room．
- A.clean
- B.cleaning
- C.being cleaning
- D.to be cleaned