求助大学英语改错,如果是标点错了也改.

题目

求助大学英语改错,如果是标点错了也改.
1.My body is healthy.
2.I comprehended his statement.
3.His English level is high.
4.If anything happens to you ,please let me know.
5.To swim properly ,a course of instruction is necessary.
6.Returning home after work ,supperwas waiting for him,in the kichen.
7.The young man is honest and hard-working,and is very reliable worker.
8.There are many ways we get to know the outside world.
9.Hewas knocked down by the bicycle ,but it was not serious.

答案