1) How long have you been recycling? a) I been recycling for 6 years b) I have been recycling for 6 years c) I recycled for 6 years d) I will been recycling for 6 years. 2) She__________________ for 5 years a) had been environmentally friendly b) has been environmentally friendly c) is environmentally friendly d) be environmentally friendly 3) What do you do to diminish the pollution? a) I have been walking to work instead of driving b) I had be walking to work instead of driving c) I walking to work instead of driving d) I has walking to work instead of drivings 4) Ecologists _________________ to keep alive endangered species. a) will be helping b) had helped c) will help d) have helped 5) Hotan_________________the most polluted city in the world since last year. a) will been  b) has been c) been d) is been 6) It____________________for a long time, so it's probable that we suffer from desertification a) will rained b) have rained c) not rain d) has not rained 7) he ____________about pollution at school. a) Have learn b) Has learned c) learn d) learning 8) The use of solar energy _______________ in the last decade a) Have grew b) will grown c) has grown d) Had grown 9) Chile is one of the countries that _______ with non-conventional renewable energies. a) leading b) had led c) lead d) has led 10) The temperatures in the planet ________________ to change in later years a) begin b) have begun c) will begun d) had began

Enviromental Development

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