1,看不出来，两个动词（work hard 和 find job）？

2，Do 不需要存在吧，直接sports are good for our health

3，agree 后面应该要加一个介词吧 agree with this idea

4，时间放前面吧。today, people are busier than before. people是复数，is 应该要变成are，busy用比较级

5，there are 直接去掉。advantage 和disavantage 可能要加复数

6，have 可能要改成has？

7，逗号不能连接两个独立句子?

8，because后面要加逗号？

9，不知道。。。 不用加this？

10，a改成an。high salary 不用加a

改错题：

1， students should work hard in order to find well-paid jobs

2，Doing sports is good for our health

3, I agree with this idea

4,people are busier than they were before

5,Someone argues that online shopping has more advantages than disadvantages

6,Everyone has their own strengths and weaknesses