Помогите пожалуйста с упражнением 9.1, буду очень благодарен)

Question

Помогите пожалуйста с упражнением 9.1, буду очень благодарен)

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Answer 1

1) were returned
2) will be being exhibited
3) has not done
4) is being taken, will be being operated
5) is used
6) have been told
7) was not read, was not cut
8) be used
9) are carried out, were not carried out
10) was returned
11) are built
12) has not been used