A)根据所给中文或首字母提示，写出所缺单词。
1. Don’t be ________ (不耐烦的) to your students. Remember, you are their teacher.
2. How many colours are there in a ________ (彩虹)?
3. After the storm the sea was ________ (平静的).
4. Our English class is very ________ (生动的，活泼的).
5. It is ________ (愚蠢的) of him to throw all his books away.
6. He studies very hard, so he can get high m________ in all the tests.
7. Tom is sad because he felt his parents are too ________(严格的).
8. Have you ________ (回复) to his letter yet?
9. Do you have any teenage p_________ ?