英语单句改错

1.This depends on if it will be fine
2.He used to go to school by bus , but now he is used to going to school on foot
3.As is known to all ,the financial crisis first broke out in the United States ,belonging to the group of developed countries
4.Can you give me some advice on how to improve our English?
5.Compare this car with that one ,and you will find the differences between them
6.Personally I think he is a very good man ,but you may not agree with me
7.Whatever you say,I'll still do it alone
8.He stayed at home instead of going to see a film
9.It was such fine weather that they wanted to go out for a picnic
10.She made a candle to give us light
11.Studies show that people are more likely to suffer from back problems if they always sit before computer screens for long hours

1，if改whether
2第二个used to后面go改going

1， if后加it
2，第二句的go ————going
3，belonged——belong