完形填空。 What  should  we  do to  keep  healthy?  One  important rule is to exercise_ 1 _. The Fang family try to exercise every day. Mr Fang _ 2 _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 he _ 4 _different sports with his friends. Mr Fang goes to a yoga (加功) class _ 5 _. But it wasn't _ 6 _this way. Last year Mr and Mrs Fang used to (过去常常) _ 7 _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 all _ 8 _better now. They believe they shouldn't be lazy. We _ 9 _exercise every day, but we should try our _ 10 _to exercise as often as possible. (     )1.A. often (     )2.A. may not (     )3.A. either (     )4.A. watches (     )5.A. in two weeks (     )6.A. always (     )7.A. riding (     )8.A. had (     )9.A. needn't (     )10.A. best B. sometimes B. can not B. also B. plays B. for two weeks B. even B. drive B. make B. don't B. good C. late C. would not C. too C. loves C. after two weeks C. sometimes C. fly C. feel C. won't have C. well D. later D. should not D. again D. likes D. twice a week D. no D. walk D. feel like D. mustn't D. better