按要求完成句子；句型转换,每空一词。
1. It is raining heavily now. (改为感叹句)
__________ ___________ it is raining now!
2. They grow rice in South China.（变被动语态）
Rice in South China
3. Shoes with lights are used for seeing in the dark. (对画线部分提问)
__________are shoes with lights __________ for?
4. Are you busy doing your homework now? He asked me.（合并为宾语从句）
He asked me was busy doing my homework then.
5. The door was locked when we arrived. (改为否定句)
The door_________ _________ when we arrived.