What should we do to keep healthy? One important rule is to exercise1 . The Fang family try to exercise every day. Mr. Fang2 exercise in the morning because he must get to work at exactly seven o'clock. But he runs every evening. He walks a lot, 3 . He walks to school every day, and after school he4 different sports with his friends. Mrs. Fang goes to a yoga class5 . But it wasn't6 this way. Last year, Mr. and Mrs. Fang used to7 everywhere in their car, even to the drugstore (药店) two blocks (街区) away. They thought they had to use the car all the time. They wouldn't walk. The Fangs all8 better now. They believe they shouldn t be lazy. We9 exercise every day, but we should try our10 to exercise as often as possible.