11. I do my homework every morning. (改为否定句)

10. My favourite food is rice. (就划线部分提问)

9. They are old bikes. (改为单数句)

8. Do you like apples? (作肯定回答)

7. This is a ruler. (变为一般疑问句)

6. I am a boy. (变复数句)

5. Bob is at home today. (就划线部分提问)

4. I have three pencils. (就划线部分提问)

3. My name is Kate. (变成第三人称)

2. This is A. (改为一般疑问句)