Adjective Clause

The man was sick. He looked very pale.

• The man, whom looked very pale, was sick.

• The man, who looked very pale, was sick.

• The man, whose looked very pale, was sick.

• The man, when looked very pale, was sick.

Which sentence that its relative pronoun can not be omitted?

• The carpets which you bought last year have gone moldy.

• The film which you recommended scared the kids half to death.

• The follies which a man regrets most in his life are those which he didn't commit when he had the opportunity.

• Bore: a person who talks when you wish him to listen.

Which one of these sentences is a restrictive/defining/identifying adjective clause?

• They’re the people who want to buy our house.

• My brother, who claimed to have a limp, sprinted after the bus.

• My grandmother, who is dead now, came from the North of England.

• I've just come back from London, where John lives.

Reduced the adjective clause! "The people who worked there got a raise last year."

• The people worked there got a raise last year.

• The people working there got a raise last year.

• The people are working there got a raise last year.

• The people work there got a raise last year.

Reduced the adjective clause! "The books which were published that year are expensive."

• Can't be reduced

• The books publish that year are expensive.

• The books publishing that year are expensive.

• The books published that year are expensive.

Reduced the adjective clause! "The man who is handsome worked in Hollywood."

• The man handsome worked in Hollywood.

• The handsome man worked in Hollywood.

• The man is handsome worked in Hollywood.

• Can't be reduced.

Reduced the adjective clause! "The man whose house was for sale was old."

• The man house was for sale was old.

• The man house for sale was old.

• Can't be reduced.

• The man where house was for sale was old.

Do you see the cat? It is on the roof.

• Do you see the cat which is on the roof?

• Do you see the cat where is on the roof?

• Do you see the cat who is on the roof?

• Do you see the cat whom is on the roof?

Which one is the most formal sentence among these sentences?

• The researcher from whom we received the survey is studying attitudes about lying.

• The researcher from who we received the survey is studying attitudes about lying.

• The researcher whom we received the survey from is studying attitudes about lying.

• The researcher we received the survey from is studying attitudes about lying.

Which one is the least formal (informal) sentence among these sentences below?

• Most people save their biggest lies for the person to whom they are closest.

• Most people save their biggest lies for the person whom they are closest to.

• Most people save their biggest lies for the person who they are closest to.

• Most people save their biggest lies for the person they are closest to.