1. If you press the button, what ____________?A. would happen B. happens C. will happen D. happen
15
2. If I ____________ time, I ____________ you with planting that tree.A . had - helped B. will have – will help C. have – will help D. have – don’t help
15
3. We can reuse things like____________.A. envelopes B. plastic bottles C. cloth bags D. glasses
15
4. People throw away millions of____________ every year. A. old car tires B. drink cans C. old newspapers D. household wastes
15
5. Will you____________ please? A. open the garbage can B. hang the clothes C. empty the dustbin D. collect the bottles
15
6. Billions of____________ are thrown away every year all over the world. A. cans B. bottles C. cups D. glasses
15
7. Things like____________ can be reused.A. plastic bags B. fabrics C. paper toys D. envelopes
15
9. If you go out with your friends tonight, I ____________ the film on TV. A. watch B. watched C. am watching D. will watch
15
10. If she ____________, we will miss the bus. A. not hurries B. doesn’t hurry C. won’t hurry D. don’t hurry
15
11. I __________ to London if I don’t get a cheap flight.A. will drive B. won’t drive C. drive D. don’t drive
15
12. Don't throw that old____________ away. We can decorate it to make a flower vase. A. can B. glass C. bottle D. paper
15
13. I think you should____________ to save water.A. have a bath B. go swimming C. heat water D. have a shower
15
14. We should____________ to prevent pollution.A. use reusable bags B. plant more trees C. turn off the lights D. save electricity
15
15. We will buy____________ for our classA. water bottles B. recycling bins C. energy-saving lights D. refillable pencils
15
16. If we plant more trees in the schoolyard, the school will become a ____________ place.A. darker B. dirtier C. greener D. more polluted
15
17. If we all use ____________ bags, we will help the environment.A. new B. cheap C. reusable D. reduced