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She was the sister of John's father.
1) I am eating
2) Nick is writing
3) Marry has put
4) He is carrying
5) Bob has washed
6) The family just has had
7) Vadim Petrovich has had
8) We already have done
9) Tom's sister has learnt
10) I just have walked
A.
5. farm
6. pollution
8. а вот это уже не знаю
10. trees
Остальное вроде все правильно.
B.
1) mustn't (наверное)
2) must
3) musn't
4) must
5) musn't
C
1) d
2) e
3) a
4) c
5) b
Stiv is ill, Martin is getting better, Martin is well.