按要求转换句子。
1. She is a woman teacher. (改为复数形式)
They are ______ ______.
2. The twin needs some bananas. (改为否定句)
The twin ______ need ______ bananas.
3. You mustn't throw anything at the animals when you are in the zoo. (改为祈使句)
______ ______ anything at the animals when you are in the zoo.
4. The Changjiang River is the longest river of China. (用Yellow River 改为选择疑问句)
______ is the longest river of China, the Changjiang River ______ Yellow River?
5. I don't think you can finish it on time. (改为反意疑问句)
I don't think he can finish it on time, ______ ______?
6. The river is 10 meters wide. (对划线部分提问)
______ ______ is the river?
7. Not only Tom but also Bob has been to that island. (改为同义句)
______ Tom and Bob ______ been to that island.
8. I sent a letter to you last month. (改为被动语态)
A letter ______ ______ to you last month.
9. Your living-room is very bright. (改为感叹句)
______ ______ your living-room is!
10. Does the earth go round the sun? My son asked the teacher. (合并为宾语从句)
My son asked the teacher ______ the earth ______ round the sun.