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. 
 1. I bought the dress which my friend advised me to buy
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