句型转换

1. Tony is thirteen years old. (改为一般疑问句,并作肯定回答)

    —_____ Tony thirteen years old?

    —_____ ,  he _____ .

2. They are American. (改为一般疑问句,并作否定回答)

    —_____ they American?

    —_____ ,  they _____ .

3. He is in Class One. (改为否定句)

    He _____ in Class One.

4. They are English boys. (改为否定句)

    They _____ English boys.