Question

Grammar task
Mark the tense form that best completes the sentence.
1. The teacher ... a new grammar rule this week.
1. explained c) had explained
2. explain d) has explained
2. Alec ... back today.
a) came b) has come
c)had come d) have come
3. She ... this engineer since she began to work at the plant.
a) know b) knew
c) has known d) had known
4. They haven't yet... to the Crimea.
a) go b) went
c) gone d) been going
5. We have already ... them our school museum.
a) show b) had shown
c) shown d) been shown
6. The children ... their homework. They can go to the cinema.
a) do b) did
c) have done d) had done
7. Have you ... the new film?
a) see b) saw
c) seen d) had seen
8. I... this doctor for 5 years.
a) know b) knew
c) have known d) had known
9. Who ... America?
a) discover b) has discovered
c) discovered d)discovers
10. He was happy. His dream ... true.
a) came b) had come
c) was coming d) is coming

Answer 1

Ответ:1. has explaied, 2.came, 3.has known,4.gone,5.shown,6.have done,7.seen,8.have known,9.has discoverd America,10.came

Объяснение: