用所给词的适当形式填空。
1. Lily goes to the country to see his grandparents ________ (two) a month.
2. We often have a great time _________ (play) football on Sundays.
3. Be quiet! The students _________ (have) an English class.
4. Driving a car to school takes ________ (little) time than taking a bus.
5. Nancy’s brother taught ________(he) how to cook.
6. He practices _________(play) table tennis every day.
7. Before having _______ lesson, you can’t be a ________. (drive)
8. She spends a lot of time _______ (play) the piano every Sunday.
9. This book is _________ (use) to you. You’d better not read it.
10. It’s not right to think that PE is ________ (important).