4．I don't know why he looked worry all day long.

　答案：worry→worried

3．Although we missed the film, but we felt very happy.

　答案：去掉but

2．The young couple often quarrel for their family problems.

　答案：for→over / about

1．Our geography teacher told us the earth was round and it turns around the sun.

　答案：was→is

1．6　单句改错

1．5　用所给词的正确形式填空

　My English teacher once told us, "If you　________(make)one close friend in school, you will be very lucky. A true friend is someone who ________(stay)with you for life. "Experience shows that he was right. Good friendship is not easily ________(find).

　It is possible that we simply do not stay in one place long enough for a true friendship ________(develop). However, there can be no disagreement on the need for each of us ________ (think)carefully about the kind of friendship we want.

　To most of us, friendships are ________ (certain)important, but we must make it ________ (clear)what kind of friendship we want. Do we want ________ (share)ourselves or do we just want to walk on the surface(表面)? For some people, friendship on the surface is quite enough. But some people need faithful(真诚的)friendship. They would like to share almost all with their friends. Our teacher told us to remember a true friend should give as much as he takes.

　答案：make; stays; found; to develop; to think; certainly; clear; to share

10．The young man has fallen ________ love with a pretty girl.

　答案：in

9．Don't look ________ the box. You may be frightened by what you see inside.

　答案：into

8．I am not interested in anything to do ________ him.

　答案：with

7．It is very fine today. Let's go ________ a picnic in the countryside.

　答案：on / for