题目内容：

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.