4. use the possessive case where it is possible. model: the conclusions of the expert. the expert’s conclusions. the new club of the workers. the poems of lermontov. the clothes of the boys. the walls of the room. the plays of shakespeare. the watch of my friend peter. the parents of all the other boys. the opinion of the lawyer. the offer of the seller. the house of my father-in-law.

The new club of the workers. - The workers' new club 

The poems of Lermontov. - Lermontov's poems

The clothes of the boys. - Boys' clothes

The walls of the room. - с предметами Possessive Case не используется 

The  plays of Shakespeare. - Shakespeare's plays 

The watch of my friend Peter. -  Peter's watch

The parents of all the other boys. All the other boys' parents 

The opinion of the lawyer. - The lawyer's opinion

The offer of the seller. - The seller's offer

The house of my father-in-law. - My father-in-law's house