The Relative Pronouns

We have never met the neighbours       [who, whose, which, whom, where, when, that] flat is above ours.

At the weekend,       [who, whose, which, whom, where, when, that] my family is at home, we have breakfast together.

The house       [who, whose, which, whom, where, when, that] we really wanted to buy had already been sold.

Dasha can't remember the room       [who, whose, which, whom, where, when, that] he left her glasses.

I'd like to take you to a restaurant       [who, whose, which, whom, where, when, that] serves excellent lunch.

The computer       [who, whose, which, whom, where, when, that] I bought last week is already broken.

Oleksandra       [who, whose, which, whom, where, when, that] mother is a physician, is very good at biology.

Do you remember the date       [who, whose, which, whom, where, when, that] we have to submit the essay?

The university       [who, whose, which, whom, where, when, that] I teach is an excellent school.

Sam is the man       [whom, which, whose, who]shaved his head. He is completely bald now.

The bat is the only mammal       [who, that, whom, where]can fly.