单项选择：(本题共20小题，每小题1分，共20分)

21．(  )Listen! She __________ under the tree．

       A．sing        B．staging        C．is singing         D．sings

22．(  )The boys are looking forward to ___________ swimming tomorrow afternoon．

       A．go          B．going         C．goes             D．go to．

23．(  )Liuzhou is ____________ the south of Guilin．

       A．in          B．at            C．on               D．to

24．(  )I'm going to visit them in China ____________ it’s my son's birthday．

       A．so          B．that          C．because           D．what

25．(  )It's going to ___________ rain this afternoon,  you can’t go out．

        A．/, but       B．／，so       C．will be, but         D．will be，so

26．(  )We go to school ___________．

        A．five days a week              B．five day one week

        C．five days weeks               D．five day a week

27．(  )My grandparents live in a village ___________ the coast．

    A．in           B．on            C．at                D．for

28．(  )Which is __________ the sun or the moon?

A．beautiful                        B．beautifuler

C．more beautiful                   D．most beautiful

29．(  ) 一__________ is the population of London?

        —About seven million people．

        A．How much     B．How       C．What        D．How many

30．(  )Victoria Peak is 554 metres __________, and River Thames is 336 kilometres ________．

        A．long，tall      B．high, long    C．tall，far     D．high, far