按要求改写句子。
1. back, to, welcome, school ( . ) (连词成句)
___________________
2. new, that, timetable, our, is ( ? ) (连词成句)
___________________
3. I like Science and Music. (改为否定句)
I ________________ Science and Music.
4. It’s time to have PE. (同义句改写)
It’s ________________ PE.
5. We have English, Chinese and PE this afternoon (对划线部分提问)
________________ do we have this afternoon?