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Here is what Lena wrote in her project about ecological problems

in her hometown. Her project is convincing. But there are eight mistakes.

Correct them.

There is many of factories and plants in the my hometown. They throw a

lot of chemicals and dirty into the air. They poison water in our lovely river.

Fish can't to live in it. Both clean air and clean water are necessary of our

health. Our factories, plants, cars and buses need in good filters. When

they will have them?

Besides, I'm very concerned about that new roads destroy the

countryside.

I think people should find the right balance between our natural

environment, industry and the building of new roads.

There are (1)  many (2 убрать предлог of) factories and plants in (3 убрать артикль the) my hometown.

They throw a lot of chemicals and dirt (4 грязь, а не грязный) into the air.

They poison water in our lovely river.

Fish can't (5 убрать частицу to) live in it.

Both clear (6 - чистый, а не чистить) air and clear water are necessary (7 заменить предлог of на предлог for) our health. Our factories, plants, cars and buses need in good filters.

When will they (8 при вопросе вспомогательный глагол перед подлежащим) have them?

Besides, I'm very concerned about that new roads destroy the countryside.

I think people should find the right balance between our natural environment, industry and the building of new roads.