1. Do you like the new phone which you bought?
2. Is this the purse that you thought you'd lost?
3. Isn't she the girl who works in the supermarket?
4. My father, who hates shopping..
5. The Internet, which almost everyone uses now,..
6. This is the place where there used to be a park....
Лучше звучит так: This is the place where a park used to be...