Дам 74 балла первому ответившему!Обусловьте в активном либо пассивном задатке глагол

Дам 74 балла первому ответившему!

Обусловьте в активном либо пассивном закладе глагол в данных предложениях:

1. At last he returned to the little town where his childhood had been spent.
2. The latest surgical instruments were used during this unique operation.
3. The trouble is that this student does not work properly at his English.
4. Before the experiment the substances are mixed in a large cup.
5. The commission will consider this offer carefully before accepting
it.
6. In spite of the fact that the report was short, it covered the subject completely.
7. This instrument is preferred to all others because of its great reliability.
8. The doctor said that an urgent operation was needed.
9. They will do everything in their power to help us.
10.1 hope we shall never deal with this matter again.
11. The results of the last experiment were constantly referred to by the professor.
12. This airplane crosses the Atlantic in about 10 hours.

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