根据所给词的适当形式填空。
1. Brush my teeth ________ (two) a day.
2. _________ (drive) a car is much faster than taking a bus.
3. This book is very interesting. I ________ (real) like it.
4. Our school is a_________ (mix) school. A lot of students study here.
5. Don't worry about me. I can do it well by ______ (I).
6. Would you please __________ (not open) the door? It's so cold.
7. Eating too much will make you much ________ (fat) than before.
8. Kitty is my friend, and I like her big, ________ (smile) eyes.
9. You should try your best ________(make) people happy.
10."Keep your mouth open ________ (wide)," said the doctor.