Complete with the present perfect continuous form of the verb in brackets. 1.people (pollute) the atmosphere for 100 years. 2.toxic fumes (poison) our planet. 3.air pollution ) the sculpture for 50 years. 4.the tap ) since morning. 5.people )over green cities issues since they moved. 6.the (use )solar power panel to heat the house in winter. 7.my parents ) money to wwf for a long time. 8.the eco helpers ) the trees all the morning. 9. collect) the rubbish to recycle for a week. 10.engineers ) the green car.

mkagermazov    2   09.04.2019 23:50    7