Active sentences into the passive

From active sentence to passive you take the object and make it to subject.
Ice cream is liked by most people.

The rest should be written by you and will be corrected by us.

Ok, thank you. I'll try.
1. Ice cream is liked by most people.
2. The car will be driven by Ben.
3. All the famous arias was sung by Pavarotty.
4. The cottage in years has been painted by no one.
5. The children were enjoyed with film.
6. The keys were forgotten by me.
7 Dad's car will be washed by Mike.
8. Poor child was saved by him.

Please check these sentences

2. Ben will drive his car tomorrow.
2. The car will be driven by Ben.
Not correct:It is not just a car it is Ben´s car

4. No one has painted the cottage in years.
4. The cottage in years has been painted by no one.
Put the time first and anyone sounds better than no one and add not
5. The children enjoyed the film.
5. The children were enjoyed with film.
The object is still at the end
6 I forgot the keys at home.
The keys were forgotten by me.
Add at home

8. He saved this poor child.
Poor child was saved by him.
Add this in the beginning of the sentence.

Zou have gotten the idea how to change - good.

Thank you very much!

When changing from active to passive, it's OK to change verbs or other words in order to keep the same idea.

4. No one has painted the cottage in years.
4. The cottage hasn't been painted by anyone in years.

5. The children enjoyed the film.
5. The film was enjoyed by the children.

Correct, but I wanted the young lady to do her own homework and not write out completely for her,

Thank you for your comment and help!