I/ Hãy điền vào chỗ trống với một giới từ thích hợp

1. It's very nice........................you to give me a lift (on, of, for, from)
2. The road is too narrow........................cars to park here (of, with, for)
3. It is impossible to cut the trees...............................both sides (on, in, for)
4. Have you applied.......................a job yet? (in, on, for)
5. The gases........................the exhausts of cars have increased air pollution in the cities (in, from, of)
6. The fresh air at the sea is good .........................people (with, for, to)
7. Nowadays people are aware.......................the danger of smoking (of, to, with)

       8. It is important to fight........................pollution of our environment (with, against, on)
II/ Hãy điền vào chỗ trống với hình thức đúng của từ trong ngoặc

1. Wild animals are seriously...............................almost everywhere (threaten)
2. They are in....................of extinction (dangerous)
3. The.................of the environment is a complicated problem (pollute)
4. Chemicals and waste ...................pollute the earth (produce)
5. Farmers can......................their land by yearly rotation of crops (protection)
6. Hydroelectric power is used to produce.....................(electric)
7. Water ...............is necessary for hydropower station (conserve)
8. The .................of waste paper can save a great amount of wood pulp (recycle)