按要求改写句子。
1. We have some lessons on Saturday. (改为否定句)
We ________ have ________ lessons on Saturday.
2. Su Hai has a bad cold. (对划线部分提问)
________ the ________ with her?
3. I go home at five. (改为一般疑问句,并作肯定回答)
________ ________ go home at five?
________, I ________.
4. Helen is ill. (改为一般疑问句)
________ ________ ill?