1.When I came home my sister was playing with her doll.
When I came home my sister wasn't playing with her doll.
2.I was cooking dinner when my mother came home .
I wasn't cooking dinner when my mother came home.
3. While I was cleaning my room my mother was washing the dishes.
While I was cleaning my room my mother wasn't washing the dishes.
1 a
2 c
3 c..........................................................
Documentary films are non-finctional. Documentary films becamr more norrative. They took many forms since their early beginnings. Documentary film is s "slice of life". People in such films are not actors. Sometimes, this films can include interviews with the people in the film.
1. Litter is thrown 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.
нне уверена, подходит ли prefer, но я больше не нашла