Раскройте скобки, поставив глаголы в пассивную форму. 1.this student can {to rely on). 2. this equipment must {to take good care of). 3. the new model of volvo always {to look at) with great interest. 4. professor semenov’s invention often {to refer to). 5. the programme of this subject much {to work at). 6. the whole reference book {to look through), but we couldn’t find any answer to the question. 7. plastics {not to affect) by water. 8. the conditions {to agree upon) yesterday. 9. the lecture {to follow) by a seminar.