此题要求改正所给短文中的错误。对标有题号的每一行做出判断；如无错误，在该行右边横线上画一个勾(√)；如有错误(每行只有一个错误)，则按下列情况改正：

　　　 此行多一个词：把多余的词用斜线(\)划掉，在该行右边横线上写出该词，并也用斜线划掉；

　　　 此行缺一个词：在缺词处加一个漏字符(∧)，在该行右边横线上写出该加的词；

　　　 此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。

　　　 注意：原行没有错的不要改。

　　　 When my father bought a computer as a birthday present to 　　　　 76．　　　　　

me last year, I felt very exciting. As we all know, computers　　　　　　　　 77．　　　　　

are getting more and more usefully now. Much information can　　　　　　 78．　　　 　　

be stored in them. We can also learn that has lately happened　　　　　　　　 79．　　　　　

in the world on the Internet. In the past, people had to do the　　　　　　　 80．　　　　　

job which were very dangerous. Now, however, computers can do it　　 81．　　　　　

instead. When an exam is coming, I often did some exercises　　　　　　　 82．　　　　　

on my computer. Then it will correct and tell me the right　　　　　　　　　　 83．　　　　　

answers. In this way it is very convenient for me to prepare for　　　　　 84．　　　　　

the exam than before. The computer has become my real friend.　　 　 85．　　　　　

75．I ____________ (怀疑) whether Tom has taken my watch.

74．The doctor began to ______________ (手术) on the boy.

73．We began to know each other _________________ (逐渐).

72．On his _____________ (到达), he was met by a large group of fans.

71．There being __________(各种各样的)points of view, it is very difficult to make a decision.

70．Of course she is an _________________ (优秀) doctor.

69．Are you alone or with a ________________ (同伴)?

68．The head office is in the ______________ (中心) part of the city.

67．The bank has ________________ (分行) all over the country.