Make one sentence from two. Use which, that, whose, whom.
1. I bought a dress. My friend advised me to buy it.
2. We went to the party. It was very interesting.
3. That is the village. We used to go there every summer.
4. This is Mary Jones. I've got a letter from her.
5. I was looking for a key. I've found it now.
6. This is the house. They bought it last year.
7. This is the actor. I like him very much.