Определить время:Present Simple Passive,Present Progressive Passive or Present Perfect Passive. 1.This year nearly a quarter of all cars that have been sold in the USA are big cars suitable for off-road action. 2.A popular car is a Hummer H2 which is modelled on a military vehicle.It is believed that such cars can create a certain image of an active and tough person. 3.Anyhow, ane shouldnt forget that the environment is being destroyed all the time by using such vehicles. 4.It is madel clear by experts that big sports cars pollute the atmosphere more than normal cars. 5.They are putting into the air a lot of pollutants and greenhouse gases, by which the worlds climate is affected. 6.Even William Ford Jr., the head of Ford cars, admits that their best-selling Ford Excursion is not good for the environment, thats why new cleaner cars are being developed by this company now. 7.The layer of gases in the atmossphere has got thicker due to industry and the gases that are emitted by cars. 8.This means more heat is reflected back to Earth, causing floods and draughts. 9.Besides big sports cars are proved to be less safe than normal xars as they can roll over too easily due to their high centre of gravity. 10.At the moments successful campaigns are being held against people driving big sports cars.

1) Present Perfect passive
2) present simple passive
3) present progressive passive 
4) present simple passive
5) present simple passive
6) present progressive passive
7) present perfect passive
8) present simple passive
9)  present simple passive
10) present progressive passive