短文改错 How to protect the environment becomes one of the big problems in the world. 1.________ We can find the rubbish not only pollutes our environment but also harm people's health. 2.________ So we should throw rubbish onto the ground. 3.________ Some factory are pouring waste water into rivers,lakes and fields. 4.________ It can pollute plants;sometimes it can kills lots of fish. 5.________ We must keep our environment clean and untidy.We have only one earth. 6.________ We must try our best protect her,and make our home more beautiful. 7.________
