1. We should put more garbage bins in the park to ..... people from littering
a. prevent b. save c. advoid d. give up
2. If the weather gets worse, the children ... school for some days
a. don't have b. wouldn't have c. didn't have d. won't have
3. " Would you mind closing the window?" ...
a. no, i'm afraid not b. no, i can't c. i'd rather you didn't d. no, of course not
4. Raw ... is pumped into the sea, from where it pollutes our beaches
a. sewage b. ingreadient c.poison d. material
5. you'd better get someone ... your house soon
a. painted b. painting c. to paint d. paints
6. We played very well, ...., we lost the march
a. therefore b. so c. but d. however
7. the villagers are interested in ...natural resources but they do not know how to do so (conservation)
8. Everyone is afraid of the ... pollution ( environment)