Full in the space with a suitable preposition / adverd: 1. He lives ... 12 Tran Hung Dao street. 2. My elder brother is ... grade 12

Exercise: Full in the space with a suitable preposition / adverd.
1. He lives ......... 12 Tran Hung Dao Street.
2. My elder brother is ......... grade 12.
3. My aunt is thirty years ld but she's ........... single.
4. In my country, you can't drive a car ......... you're 22.
5. My mother always goes to the market .......... foot.
6. Who is talking ......... Mrs.Lan.
7. I live ........ a big house ......... my uncle.
8. Which class are you ........... ?