Relative clauses (That or Who)

The new cellphone _________ I bought yesterday is very fast.

My father buys a new car _______ is very expensive.

My teacher is a woman ________ comes from Rusia.

The teddy bear ________ is pink was thrown away.

The day _________ I met him was the best day in my life.

The girl _________ you saw yesterday is my best friend.

The boy ________ is watching tv is my son.

Dan's sister, _______ lives in Holywood, is an actress.

The books _________ I borrowed were amazing!

The exam ________ we did last week wasn't easy.