Question

Преобразуйте предложения поставив глагол в страдательный глагол 1. They carry out different experiments in the chemical laboratory 2. After each lesson we ventilated our classes 3.The students place laboratory vessels in the tables 4. In a year we shall equip our chemical laboratory with modern apparatuses 5. Fahrenheit introduced a new scale into the experimental work in the seventeenth century 6. Laboratory workers obtain large amounts of distilled water by distillation 7. After the experiment was over we recorded all the findings

Answer 1

1. They carry out different experiments in the chemical laboratory
Different experiments  are carried out in the chemical laboratory by them
2. After each lesson we ventilated our classes
Our classes were ventilated after each lesson by us 
3.The students place laboratory vessels in the tables
 Laboratory vessels are placed  in the tables by the students 
4. In a year we shall equip our chemical laboratory with modern apparatuses
Our chemical laboratory  will be equiped with modern apparatures in  a year by us 
5. Fahrenheit introduced a new scale into the experimental work in the seventeenth century
A  new scale was introduced into the experimental work in the seventeenth century by Fahrenheit
6. Laboratory workers obtain large amounts of distilled water by distillation
Large amounts of distilled water by distillation  were obtained by Laboratory workers

7. After the experiment was over we recorded all the findings
All the findings was recorded by us After the experiment was over.

Answer 2

Для преобразования предложений, поставив глагол в страдательный залог, используется форма "быть" в соответствующем времени и форме, после которой следует смещенная форма основного глагола (приставка "был" для прошедшего времени и "будет" для будущего времени). Давайте преобразуем предложения:

1. They carry out different experiments in the chemical laboratory. - Different experiments are carried out in the chemical laboratory by them.

2. After each lesson we ventilated our classes. - After each lesson our classes were ventilated by us.

3. The students place laboratory vessels in the tables. - Laboratory vessels are placed in the tables by the students.

4. In a year we shall equip our chemical laboratory with modern apparatuses. - In a year our chemical laboratory will be equipped with modern apparatuses by us.

5. Fahrenheit introduced a new scale into the experimental work in the seventeenth century. - A new scale was introduced into the experimental work by Fahrenheit in the seventeenth century.

6. Laboratory workers obtain large amounts of distilled water by distillation. - Large amounts of distilled water are obtained by distillation by laboratory workers.

7. After the experiment was over we recorded all the findings. - After the experiment was over, all the findings were recorded by us.