用所给词的适当形式填空。

1. Please use the mouse and ______ (click) "new document. "

2. We don't use the Internet ______ (do) our homework.

3. ______ (one), he opens a new document.

4. ______ (final),  the girl finishes her homework and goes home.

5. Can you help me ______ (switch) on the computer?

被认为世界上最早、实施最成功的新中国成立初期的健康促进策略是（）。

A.社会动员

B.健康促进

C.卫生宣传

D.爱国卫生运动

E.健康教育