根据句意及首字母提示写出所缺单词

1. Please keep the room clean. And don't t_____ the waste paper everywhere.

2. The beautiful flowers produce a p____ smell. I love them very much.

3. The wine bottle was p______ in a Chinese factory.

4. Can you tell me the four famous inventions in a________ China?

5. The company was built in the eighties of the twentieth c_______.