句型转换。
1．It comes from the vapour.（就划线部分提问）
2．Can you help me?（肯定回答）
3．I'm going to the hospital.（就划线部分提问）
4．I'm going to plant a flower tomorrow.（就划线部分提问）
5．Does he teach English?（否定回答）
1. Where does it come from?
2. Yes, I can.
3. Where are you going?
4. What are you going to do tomorrow?
5. No, he doesn't.