"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.A.long B.round C.over D.about
2A.ordinary Btiny Cusual D.often
3.Abottle B tin C can D.cup
4.Acoins Bchange Cbills D,charge
6.Acustomer Bcashier Cprincipal D postman
7.Asuggestion Bdirection C hints D interview
8A.orders B brings C demands D invites
9A.want Blove C need D move
10.Aefficient Benough full certain
11.Atake Bdo make cause
12A.unhappy Bunlucky unlikely uncomfortable
13.Aempty Bfull Cgrateful troubled
14A.indicate Btell Csignify direct
15A.helping Bto help Con helping helped
16A.want Buse Cneed bother
17A.waste Bappreciate Cspend cost
18.Asort Btype Cvariety style
19.Ato Bthrough Cwith by
20.Adissatisfied Bannoyed Chated disturbed
答案：
AADDB BBDBB CDABC ACCDB