40. You have been to Tibet, _________?

I was told that the snow-covered mountains were very beautiful.

A. have you          B. haven't you      C. don't you

五、完形填空(本题共10分．每小题1分)

通读下面短文，掌握其大意，然后在各题所给的A、B、C三个选项中，选出一个最佳选项。

It was cold outside. A strong   41    was blowing hard. I  42   at a round table in a cafe,  drinking coffee. I was glad there were other people in the place,  but the happiness didn't 43   long. No one seemed to care about the others except the computer   44  him. I stood up,  walked between the tables and came to the nearest computer. In front of it was a thin,  young man,  with a cup of coffee beside the computer,  untouched(没有动过的).

"I'm Steve,  "he answered   45  I asked him twice. "I can't talk with you. I'm  46  ,  ” he said. I thought he was  47 ,  and said sorry to him. Before going back to my seat, I noticed he was not working. He was 4S online with somebody ― probably someone he didn't know ― and,  at the same time,  he was playing a computer game ― a war game. Then I saw 49 there using a computer,  talking online. Though there were many people around me,  I felt I had  50   been so lonely.

What will be the future of human beings who prefer sharing(分享) their lives with machines instead of people?