1. Are these words easy? Yes, they are. No, they are not.
2. Is she a good student? Yes, she is. No, she isn't.
3. Are they in the garden? Yes, they are. No, they are not.
4. Is her daughter a teacher? Yes, she is. No, she isn't.
5. Are the children at school? Yes, they are. No, they aren't.
6. Is John 19 years old? Yes, he is. No he isn't.
7. Is lesson 5 very difficult? Yes, it is. No, it isn't.
8. Is it 10 o'clock? Yes, it is. No, it isn't .