1. air and water ....................... can make people fall ill( pollute)
2. i always drive more ................................... at night ( care)
3. you can............................. the amount of gas by traveling by bicycle or public transport ( ruduction)
4/ easter is a ................................. festival which is celebraling in many countries in the world ( joy)
5. consumers want products that will not only work ................................., but also save money ( effect)
6. there are energy-saving methods and ........................ to use solar energy (invent)
7.most of our .................... nows comes from the use of coal, gas oil or nuclear power ( electrical0
8. .......................................... pollution is serious problrm today( environment)
9. i look forward to receving good........................... from your company ( respond)
10. not so long ago the country was ................. with green trees(cover)
11. she..................... declined his invitation(polite)
12. i think the..................... drivers should be fined heacily( care)
ex2.
1.he always hates........................ the phone and very often lét it............................(answer/ring)
2. he....................... his job last month and since then he .................... out of work (lose/be)
3. why................ you.........................at me like that?
- ............................. i .......................................... anything wrong ?(look/do)
4. on sunday while i ......................... my breakfast, i .................................. a knock at the door (make/hear)
ex3.
1. if they(not/study).....................hard, they will fail their final ẽamination
2. don't forget (turn)..................... off the faucets when you go out
3. my brother is used to (wash) .................. his clother in the mỏning
4. tom(write)....................this letter for three hours
5. nam enjoyd (work)...................with children
