题目内容：
请回答题Not long ago, I had my first on-line chat. I thought it would be （56） because I have heardso many people （57） it in that way. But it was, disappointingly, quite an unpleasant 58On line I met a man （59） said he was a manager in a big company in Dalian. We （60）pleasantly first, then exchanged e-mail（61） in order to keep in touch in the future. （62） , hesent me （63） . When I opened it, I found, to my （64） , a detailed(详细的) serf-introductionincluding age,（65）, weight, habits and future plans. It was an advertisement for a dating (约会) service! I was hurt （66） felt rather angry.
When I told a veteran(有经验的) Internet surfer(网民) （67） my experience, he said itwas not 68 I was （69） The Web provides such a nice, large place to make friends, whydo some people （70） it?
The relationship between one another should be mutual(互助的) politeness and （71） . On-line we（72） see one another' s physical form, but we are talking through our （73） Such （74） as the one I met are not polite at all.
Since the Web belongs to everyone, every user has a duty to keep a friendly and polite atmosphere(氛围). We need 75 honesty and respect on-line.
请回答（56）题 A．exciting
B．disappointing
C．surprising
D．frightening
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