答案 with;through/on

2.In cold days,it took a long time for him to recover 　　　　　a bad cold.

答案 from

3.Uncle George was always busy with his business,so he didn't settle 　　　　　until he was nearly fifty.

答案 down

4.He has some trouble 　　　　　his classmates,but he has no trouble 　　　　　doing his lessons.

答案 with;in

5.Would you please give me some advice 　　　　　how to learn English well?

答案 on

6.Would you join us 　　　　　the discussion?

答案 in

四、单句改错

1.His neighbours joined him for searching for his lost child.

答案 第一个for→in

2.The young man and the pretty girl have fallen in love with each other for many years.

答案 fallen→been

3.Mr.Wang is getting along bad with his business.

答案 bad→badly

4.I'm having some trouble at my brother.

答案 at→with

5.I still find that hard to make good friends with them.

答案 that→it

6.We become good friends when we were 8 and we often did homework together.

答案 become→became

7.On Monday,Li Ming was energetic and said that he had done was great.

答案 that→what

8.The Internet is an amazing information resource,but most parents disagree on their teenagers on surfing on the Internet.

答案 第一个on→with

五、翻译句子

1.我对我的老师们很感激。(grateful)

答案 I am grateful to my teachers.

2.那个男孩也加入了我们的篮球比赛。(join in)