—Forests are very important, aren’t they?—Yes. They can prevent the water washing the earth away.A.for B.to C.from
I my cousins yesterday and we had fun together.
Bob a lot since we met last year.
一 you please buy a newspaper for me? 一Sure.
Bill is very popular and he is student in the class.
一 is the model plane made of ? 一It's made of used wood and glass.