F. WRITING
XV Rewrite the following sentences based on the given words.
1.People don’t care much about environment, so they keep making it worse.
→If people
2.She suffered from a serious disease because of drinking contaminated water in a long time.
→Since
3.The drainage system is damaged. There is not enough water for the crop.
→If the drainage system
4.“Why don’t you turn off more lights in the house to reduce your eyestrain?”
→If I
5.The improvements of the public transport system will encourage more people to use it.
→If