A
I was waiting in line to register a letter in the post office at Thirty-third Street and Eighth Avenue in New York．I noticed that the clerk appeared to be bored with the job—weighing envelopes，handing out stamps，and issuing receipts-the same dull work year after year．So I said to myself，"I am going to try to make that clerk like me．Obviously，to make him like me，I must say something nice，not about myself，but about him．"So I asked myself，"What is there about him that I can honestly admire？"That is sometimes a hard question to answer，especially with strangers．However，in this case，it happened to be easy．I instantly saw something I admired very much．
So while he was weighing my envelope，I remarked with enthusiasm，"I certainly wish I had your hair．" He looked up and his face was full of smiles " Well，it isn't as good as it used to be，"he said modestly．We carried on a pleasant conversation and the last thing he said to me was "Many people have admired my hair．"
I'll bet that person went out to lunch that day walking on air．I'll bet he went home that night and told his wife about it．I'll bet he looked in the mirror and said，"It is a beautiful head of hair．"
There is one all-important law of human conduct．If we obey that law，we shall almost never get into trouble．In fact，that law，if obeyed，will bring us countless friends and lasting happiness．But the very instant we break the law，we shall get into endless trouble．The law is this：Always make the other person feel important．
21. According to Paragraph 1, it seemed that___________ .
A. the clerk was tired of his job
B. the clerk was working happily then
C. the author had known the clerk for a long time
D. the author did the same job as the clerk before
22．The author commented on (评论) the clerk's hair to__________．
A．win his kindness B．draw his attention
C．show his respect D．express his thanks
23．What does the author try to express in Paragraph 3_________?
A．The author felt good after praising the clerk．
B．The clerk would spread his good feelings to others．
C．The clerk would focus on his appearance in the future．
D．The author's words would positively influence the clerk．
24．What's the most suitable title for the passage？
A．The importance of a white lie
B．Always help people wholeheartedly
C．The secret of making people like you
D．How to make your work easy and interesting．
