根据句义和所给首字母写出英语单词。  

1. She drank a bottle of orange p______.

2. There are several spelling m_______ in you written work.

3. I'm c________. Could you please explain it again?

4. I'm always c_______ Sam and Yom. They look the same.

5. If you b______ with them, they might reduce the price.

我国的建设工程监理是指具有相应资质的工程监理企业，接受建设单位的委托，代表建设单位对承包单位的()进行监督管理的专业化服务活动。

A.安全质量管理活动 

B.投标行为 

C.施工过程 

D.建设行为