用所给词的正确形式填空。
1. It is interesting _________ (know) something about animals.
2. __________ (not open) the door. It is cold outside.
3. She can work out the difficult question _________ (easy)
4. Please keep ___________ (quietly) in the reading - room
5. —Where is my cup?
—__________ (you) is over there.
6. What about _________ (go) fishing with us tomorrow?