open是什么意思（open意思）
同学们经常会遇到这样的题目：
The door is ___, there must be someone in the room.
A.opened B. opening C. open D. opens
--- How cold! What happened?
--- The door was ___ by papa.
A.opened B. opening C. open D. opens
3.The door is ___, the staff are having a meeting.
A. close B. closing C. closed D. closes
___ the door, please. It's too windy outside.
A. Close B. Closing C. Closed D. Closes
