下列方剂中以黄芪为臣药的是（）

A.牡蛎散

B.玉屏风散

C.补中益气汤

D.当归补血汤

E.防己黄芪汤

         在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给出。

1. Help y________, twins. There is some orange juice in the fridge.

2. Be q________, or we’ll miss the last bus to school.

3. September is the n________ month of the year.

4. Peter left his wallet in the taxi. L________, the driver found it and gave it back to him.

5. Many teenagers have an u________ diet. It’s bad for their health.