(四)以下是一篇短文。每一句有一个错误。根据格式改正。改错格式为:1. 删除A 2. 在A与B间加上... 3. 把A改成B 1. Much accidents may happen at home. 2. Everyone should knew some first aid to deal with common injuries. 3. When a person is bitten by an animal, and wash the wound with cold running water. 4. It must be done before he is took to see a doctor. 5. When a person is burnt, wash and cool the area of the skin under the cold tap in a while. 6. Meanwhile, put a piece of dry clean clothes over the burn. 7. If a person is bad burnt, take him to the doctor. 8. If a person cuts her finger, clean it and put a piece of clean paper round a cut. 9\10(此句两次错误). In the future we should learn more about first aid and try spread them.