2. She should make progress in the world of science. 
Progress is made every day in the world of science.
 

3. The author will write this novel in June.
This novel will be written in June.

4. Nobody will solve this hard problem.
This hard problem will be solved.

5. Her mother will take her to hospital next week.
She will be taken to hospital next week

6. Someone will clean the room.
The room will be cleaned.

7. They had to cut down that tree.
That tree had to be cut down.

8. Someone should tell Sally what happened.
Sally should be told what happened.

9. They're going to build a new hospital.
A new hospital are going to be built.

10. We can solve the problem.
The problem can be solved.

1. He uses milk for making butter and cheese.
Milk is used for making butter and cheese.
2. She makes progress every day in the world of science.
Progress is made every day in the world of science.
3. The author will write this novel in June.
This novel will be written in June.
4. Nobody will solve this hard problem.
This hard problem will be solved.
5. Her mother will take her to hospital next week.
She will be taken to hospital next week.
6. Someone will clean the room.
The room will be cleaned.
7. They had to cut down that tree.
That tree had to be cut down.
8. Someone should tell Sally what happened.
Sally should be told what happened.
9. They're going to build a new hospital.
A new hospital are going to be built.
10. We can solve the problem.
The problem can be solved.