根据句意和汉语提示写单词。 1. Even the simplest everyday activities can _______(减少) pollution. 2. I think it’s _______(必要的) for us to master (掌握) a foreign language. 3. My computer doesn’t work. I have to get somebody to _______(修理) it. 4. We should _______(关心) for our parents. It’s the right thing for us to do. 5.- Would you ple ase _______(挑拣) out some bigger apples for me? - Of course I will. 6. We’d better take our own cloth bags when we go shopping instead of using _______(塑料制的) bags. 7. Petrol (石油) is the most important _______(产品) of many Middle-East countries. 8. Wood and stone are the only raw (未加工的) ________(材料) on the island.