Choose the correct answer
Помогииите плииз даю  15 баллов
Example : The English Channel..... Great Britain from Europe.
a) separate b) Separates c) is separating

1. .... you ever .... about the Simpson Desert? - No, where is it ?
a) Do .... hear b) Did ... hear c) Have .... heard

2.Last year, they .... to the south of England for the holidays
a) go b) went c) have gone

3.Where are the children? - In the living room. They .... Scrabble.
a) are playing b) play c) played

4. Next week the young explorers ..... the valley of rubbish (от мусора)
a) will clean b) clean c) have cleaned

5. What ... the Great Barrier Reef full of? - Different corals and bright fish.
a) is b) are c) has been

6) They ..... not ..... abroad last summer
a) do ... travel b) did .... travel c) will ... travel