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.