Write the following sentences using present perfect passive voice. teenagers have broken a lot of trees. factories and plants have polluted our rivers. bob has written the words “i love helen” on the tree. these children have dropped a lot of litter in the forest. the pupils of 9 «a» class have collected 30 kilogram’s of wastepaper.

1 a lot of trees have been broken by teenagers.

2 our rivers have been polluted by factories and plants.

3 the word "i love helen" have been written on the tree by bob

4 a lot of litter have been dropped in the forest by these children.

5 30 kilogrammes of wastepaper have been collected by the pupils of 9a class.

  5  предложениe

the university of california and the state university of new york are two examples of such public schools.

по : в своей комнате я бы хотела изменить цвет стен, потому что он слишком светлый. еще я бы хотела поменять комод, на шкаф. обычный слул я бы поменяла на компьютерный. а на стену я бы повесила картину. еще на пол я бы положила ковер. тогда моя комната была бы идеальной.

по : in my room i would like to change the color of the walls, because it is too bright. i also would like to change the dresser, a cupboard. normal slul i would have changed on the computer. and on the wall i would hang a picture. more on the floor i would put the carpet. then my room would be ideal.