20．Nina is clever but kind of lazy．If she  _______ harder，she _______   better grades．

    A．will work，gets     B．works，will get    C．will work，will get

19．They arrived _____ pairs _______ a winter evening．

    A．at，in                 B．in，on                  C．in，in

18．―What time does the plane ______?

    ―I think at about 10 o'clock．

    A．drop off              B．get off                  C．take off

17．How much does the train ticket ______ from Harbin to Beijing?

    A．cost                     B．spend                   C． pay

16．― ______ will he come back?―In a week．

    A．How long            B．How soon             C．How often

15．Do the boys like playing football?

    A．Yes，they like it very much．                   B．Bill like football best．

    C．Yes，they are looking at Bill opening the box．

    （一）单项选择

14．What's in the box?          

    A．A basketball．    B．A football．         C． A ball pen．

13．Who gives Bill a box?

    A．Bill's mother．    B．Bill's father．        C． Bill's friend．

12．Why are some children at Bill's house?

    A．Because they want to sing here．               B．Because they want to drink here．

    C．Because they are having a birthday party here．

11．Whose birthday is it?

    A．It's Bill's birthday．                                  B．It's Betty's birthday．

    C．It's Tom's birthday．