根据句意，用括号内所给单词的适当形式填空。

1. Daniel is ______ (energy) enough to be the host of the charity show.

2. Yesterday Sam celebrated his _______ (twenty) birthday with some of his classmates.

3. Some people do not have enough money for _______ (medicine ) treatment.

4. As we all know China _______ (success) sent up her first man-made satellite in 1970.

5. Some students like to use yellow stationery because it is the color of _______ (wise).

工业企业设计卫生标准规定了车间空气中有害物质（氨）的最高允许浓度（）毫克/立方米。

A、10

B、20

C、30

D、50