下列句子中都有一处错误请改正过来

1 What is even more important is as the earth cooled down, water began to apear on its surface.

 2 Many scientists believe the earth may become too hot to live.

3 So whether life will continue on the earth for millions of years to come will depend on if this problem can be solved.

4 It is so wet there that the trees are extremely tall, some measure over 90 metres.

5 Sher told an amusing joke to us ,wearing on her face an amusing look after dinner.

6.As matter of fact, I landed in Britain by accident.

7 The reason why he didn’t come here was because he was ill.

8 John swims very well, but I don’t like the way with which he always shows off in public.

9 He is the only one of the students who were praised by the teacher

10 I went ther to search my missing watch.

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号∧,并在其下面写出该加的词。

删除：把多余的词用斜线/ 划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1 每处错误及其修改均仅限一词；

2 只允许修改10处，多者（从第11处起）不记分。

Jim is one of my closely friends. Two months ago，his mother bought a computer

to him as a birthday present. She hoped Jim will study hard with the help of the

computer. To his surprise，Jim just wasted plenty of time play computer games every

day. Now she regrets buying the computer. As matter of fact，a computer can do a lot of

everyday jobs for us. It is wide used in factories，hospitals，banks and so on. Many

computers scientists are now trying to make the computer to “think” like a man. In my

opinion，the key is what we should use it wisely.

 __________ sleep every night is important for teenagers. _________, loss of sleep can make you feel tired, and even cause you to put on weight.

A. A good amount of;  As a matter of fact                B. A good number of; In truth

C. A large amount of;  As matter of fact                D. Plenty of; In a fact

______ young man standing there looks strong and healthy; however, as
_________  matter of fact ,he has a serious disease.　　　　　　

(2009浙江绍兴一中二模)As___ _matter of fact, _____beauty of___ nature there made an excellent impression on me.

       A．a; the; 不填  B．a; the; the        C．the; the; 不填  D．a; 不填; the