25．A．in two weeks          B．for two weeks         C．after two weeks      D．twice a week

24．A．watches              B．plays                C．loves               D．likes

23．A．either                B．also                 C．too                        D．again

22．A．may not              B．can not              C．would not           D．should not

21．A．often                B．sometimes            C．late                 D．later

20．Tom with his friends          the park．

A．are going to           B．in going to           C．is going              D．are going

What should we do to keep healthy? One important rule is to exercise    21  ．The Fang family try to exercise every day．Mr. Fang    22    exercise in the morning because he must get to work at exactly seven o'clock．But he runs every evening．He walks a lot，  23   ．He walks to school every day，and after school he    24    different sports with his friends．Mr. Fang goes to a yoga（瑜伽功）class    25   ．

But it wasn't   26    this way．Last year Mr. and Mrs. Fang used to（过去常常）   27   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   28    better now．They believe they shouldn't be lazy．We   29    exercise every day，but we should try our   30    to exercise as often as possible．

19．I usually          my bike．but sometimes I          the taxi．

A．ride，by                 B．by，take            C．by，by                   D．ride，take

18．I'm          in the          book．

A．interesting，interesting                    B．interested，interested

C．interesting，interested                     D．interested，interesting

17．There is          in to day's newspaper．

A．nothing important                                 B．important noting

C．anything important                               D．important anything

16．--         are you staying?        --For two weeks．

A．How                 B．How often          C．How for             D．How long