Fill one preposition ( at, about, for, in, from, for, to)

Fill one preposition              ( at, about, for, in, from, for, to)
1. We're talking.......... Lan's family.
2. I found a place.......... us to live in Hue.
3. A farmer works hard............. morning............ night.
4. My mother is a teacher. She works............... a primary school.
5. Mr. Tuan is a journalist. He writes.......... "Nhan Dan" .
6. There's a good house.............. 27 Hai Ba Trung Street.