1. The room … was decorated for the party was locked.

that
who
which
2. I opened the drawer in … I always keep my photos.

which
that
who
3. He has done everything … can help him to avoid punishment.

which
that
whose
4. I want to introduce you to a girl … organized this party.

that
who
which
5. Don’t tell anyone for … you have voted.

who
that
whom
6. The writer … book was a success don’t want to talk to public.

who
whose
whom
7. Colin is the naughtiest boy … I have worked with.

which
whom
that
8. He spoke to an angry customer with a soft voice … was the best way to calm him down.

which
who
whose
9. The article … I read yesterday was very interesting.

that
who
which
10. I need someone … works with difficult cases.

that
who
whose
11. Mary is the kind of women … never stop talking.

who
that
which
12. Last week I met Mary … told me last news.

who
that
which
13. Where is that box in … I put money?

that
which
who
14. I don’t know a man to … you were talking.

who
whose
whom
15. I want to find out … idea it was.

who
whose
whom