Which hat did you buy?

Who broke this plate?

Which bus did you catch?

Who is knocking at the door?

Which of the two books do you want?

She is the girl whom I met her yesterday.

She is the girl met me yesterday.

This is the book which I bought yesterday.

Join these sentences in the same way.

This is the car which the mechanic repaired yesterday.

He is the man whom I invited to the party.

These are the things which I bought yesterday.

He is the man who came here last week.

He is the policeman who caught the thieves.

She is the nurse who looked after me.

She is the woman whom I met yesterday.

I am the person who wrote to you.

They are the people whom I saw them yesterday.

They are the trees which we cut down yesterday.