这些句式你掌握了吗？按要求改写下列句子。
1. We often go to the cinema by bus.( 就画线部分提问)
______ ______ you often ______ to the cinema?
2. I didn't do my homework because I was ill.(就画线部分提问)
_____ _____ _____ do your homework?
3. The box is very heavy. I can't carry it. (合为一句)
The box is ______ heavy _____ me _____ carry.
4. Jill has to stay at home today.(改为否定句)
Jill _____ _____ to stay at home today.
5. I think pepper is good for your health.(改为否定句)
I ____ think pepper ____ good for your health.