"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 (叩頭) 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.bottle tin can cup

　　4.pay back pay off pay up pay for

　　5.coins change bills charge

　　6.customer cashier principal postman

　　7.suggestion direction hints interview

　　8.orders brings demands invites

　　9.want love need move

　　10.efficient enough full certain

　　11.take do make cause

　　12.unhappy unlucky unlikely uncomfortable

　　13.empty full grateful troubled

　　14.indicate tell signify direct

　　15.helping to help on helping helped

　　16.want use need bother

　　17.waste appreciate spend cost

　　18.sort type variety style

　　19.to through with by

　　20.dissatisfied annoyed hated disturbed

　　答案：

　　AADDB BBDBB CDACA CBACB