who / which

Yesterday I saw a car ... was really old

Mandy is a girl ... I met on Friday.

That man stole the car ... the lady parked in front of the supermarket.

Can I talk to the girl ... is sitting on the bench?

The book ... you gave me is great.

She likes humburgers ... are hot.

Bill Clinton, ... was the President of the USA, has only one daughter.

Is this the book... you will buy?

The children played in the snow ... had fallen at night.

We are using books ... were printed last year.

The boy...is in front of you is my best friend

The test...we are doing is easy