Ответ:
1. Since then I ….. my job several times.
c)have changed
2.Mary isn’t at home. She ….. to work.
c)has gone
3.They ….. in construction business for 5 years.
b)have been
4.….. you ever ….. the Queen of Great Britain?
a)Have ... seen
5.He can’t find a job. He ….. unemployed for half a year.
b)has been
6.He showed us the place where ….. his leg.
c)he had hurt
7.What ….. you opened the window?
b)had you said before
8.Yesterday I read an interesting article which my teacher ….. to me.
a)had recommended
9.I ….. a snake before that day.
a)had not touched
10.Andy won the match although he ….. the game before.
b)had not played
Объяснение: