Прочитайте предложения и напишите их в страдательном залоге(present simple passive) 1. people throw litter on the ground. 2. cars pollute the air. 3. we cut down trees. 4. people often leave glass

1. Litter is thown on the ground by people
2. The air is polluted by cars
3. Trees are cut down by us
4. Glass is often left by people