1.the inhabitants have made.....suggestion.......on how to protect the environment(suggest)
2.it is ...........disappointed........ that our environment is more and more polluted(disappoint)
3.the drivers have left lots of garbage on the groung after their.........refestment....(refresh)
4.A complaint letter should be ended...........politely....(polite)
5.some volunteer....convervations.............help to clear up the beach(conserve)
6.the new machine he bought last week works..........effectively...(effective)
7.Let's have an......electricity....mend the iron(electric)
8. ........Ultimately......,he finished his work(ultimate)
9.We should save our country's ....natural........resources(nature)
10. ......Consumers.......'s main concern is quality of a new product(consume)
11. I'm .......worried.....about my final exam(worry)
12.when will they finish the ....decoration........of your house(decorate)
13.Don't treat me as a......slave.....(slavery)
14.We have........freesom..........of choice, tea and coffee(free)
15.Please behave.......generously......(generous)
16.Tet is one of the important ............celebration.........for Vietnamese people(celebrate)
17.Everyone likes him because of his sense of.....humor.......(humorous)