题目内容：

根据短文内容,从各题所给的A、B、C、D 四个选项中选出最佳选项

America is a mobile society. Friendships between Americans can be close and real, _______disappear soon if situations change. Neither side feels hurt by this. Both may exchange Christmas_______for a year or two, perhaps a few letters for a while—then no more. If the same two people meet again_______, even years later, they_______ the friendship. This can be quite difficult for us Chinese to _______.

Americans are ready to receive us foreigners at their homes, share their holidays and their home life. They will enjoy welcoming us and be happy if we_________their hospitality（好客）easily. Another difficult point for us Chinese_______. Americans is that although they include us warmly in their personal everyday lives, they don’t show their_______to us if it needs a great deal of time.

This is usually the _______ of the practice in our country where we may be generous with our time. Sometimes, we, as hosts, will appear at airports even in the middle of the night to meet a __________, we may take days off to ________ guides to our foreign friends. The Americans, however, ________their welcome usually at homes, but truly cannot ________ the time to do a great deal with a visitor outside their daily activities. They will probably expect us to get ourselves from the __________to our own hotel by bus. And they expect that we will phone them from there. Once we arrive at their homes, the welcome will be full, warm and real.

For the Americans, it is often ________ friendlier to invite a friend to their homes than to go to restaurants, so accept their hospitality at home!

1.A.so B.but C.or D.until

2.A.greetings B.subjects C.sayings D.manners

3.A.in public B.in need C.by themselves D.by accident

4.A.make up B.pick up C.end up D.put up

5.A.discuss B.remember C.understand D.communicate

6.A.accept B.avoid C.attend D.advise

7.A.understanding B.understand C.understood D.to understand

8.A.sadness B.politeness C.darkness D.loneliness

9.A.truth B.secret C.same D.opposite

10.A.friend B.teacher C.boss D.host

11.A.try for B.depend on C.act as D.deal with

12.A.end B.enter C.express D.explain

13.A.manage B.make C.mention D.shape

14.A.address B.airport C.home D.hotel

15.A.confirmed B.considered C.committed D.controlled