按括号内的要求改写下列句子。

1. Mr. Jackson usually goes to work at eight o'clock in the morning.(对划线部分提问)

2. Is this your tomato?(改为复数形式)

3. They play basketball after school. (改为否定句)

4. I like science because it's interesting.(对划线部分提问)

5. He does his homework at seven pm. (改为一般疑问句并作否定回答)