Rewrite the following sentences in good English:
1) Rupert knows the family who's house is for rent.
2) I've met many people, some of them are from my country.
3) The reason because I didn't know was that no one had told me.
4) There were a lot of people waited in a long line outside the box office.
5) Einstein who failed his university entrance exam discovered relativity.
6) I can't find my diary, what is a real nuisance.
7) Lake Superior, that lies on the US Canadian border, is the largest lake in North America.
8) My favorite place in the world is a small city is located on the southern coast of Brazil.
9) The nice couple with who we went on holiday has just moved in next door.
10) I ran into a woman with that I had gone to elementary school.
