A
B
C
100

A dentist is a person ________ pulls your tooth out.

who

100

The man fell down. He was riding the bike.

The man who fell down was riding the bike.

100

This is the chair. My parents gave it to me.

This is the chair that my parents gave to me.

200

A student is someone ______ studies hard for the exam

who

200

We threw out the computer. It never worked properly.

We threw out the computer which/that never worked properly.

200

This is the woman. She gave me my first job.

This is the woman who gave me my first job.

300

I don’t like stories ________ have unhappy endings

which/ that

300

She's the woman. She telephoned the police.

She's the woman who telephoned the police.

300

We're looking for all the balls. We were playing with them.

We're looking for all the balls that we were playing with.

400

A chair is something _______we sit on.

which/that

400

Every meal was delicious. Ben cooked it.

Every meal that Ben cooked was delicious.

400

That's the woman. I was telling you about her.

That's the woman who I was telling you about.

500

This is the best movie ________ I have seen recently. 

that

500

I gave you some flowers. I bought them from APITA store.

I gave you some flowers which I bought from APITA store.

500

Tom took some pictures. They are beautiful. 

Tom took some pictures which are beautiful.