"Thank you" means that you recognize that someone has done something for you. Thus we thank people all day ( 1) even for the smallest, most ( 2) things. If a waitress brings you a ( 3) of coffee, you say "Thank you". When you ( 4) your food and get your ( 5), you say "Thank you" to the ( 6). If someone gives you ( 7) in the street, you say "Thank you". If someone ( 8) you to dinner, you say "Yes, thank you, I’d ( 9) to come." However, that’s more than (10). Excessive expressions of gratitude (11) Westerners extremely (12) and gives a sense of (13) thanks, a sense of formal or required Kowtowing (叩头) which does not (14) gratitude but insincerity. For example, if your advisor spends a half-hour of his time (15) you edit some letter you’ve just written, you will (16) to say "Thank you, I really (17) your time." But one or two phrases of that (18) is enough. If you go on and on (19) statements about his kindness, the person will feel not thanked but (20) and will not be anxious to help you again.

1.long　round over　about

2.ordinary　tiny　usual often

3.bottletin 　can 　cup

4.pay back　pay off 　pay uppay for

5.coins changebills charge

6.customer　cashier 　principal postman

7.suggestiondirection hints interview

8.ordersbringsdemands 　invites

9.want　love　need　move

10.efficient enoughfull　certain

11.take　domake　cause

12.unhappy 　unlucky 　unlikely　uncomfortable

13.empty full　grateful　troubled

14.indicate　tell　signify 　direct

15.helping 　to help 　on helpinghelped

16.want　use 　need　bother

17.waste appreciatespend cost

18.sort　type　variety 　style

19.tothrough 　with　by

20.dissatisfied　annoyed 　hated disturbed

答案：

AADDB BBDBB CDA