Fill in the blanks with suitable prepositions of time.
1. Rishi reached New York ................ (in/ at / on) 9 pm last month.
2. We met them .............. (in/ on/at)
3. The farewell program starts .............. an hour. (at / within)
4. We set out for our journey .............. dawn. (in / on/ at)
5. Singers have been rehearsing .............. two hours continuously. (since / for)
6. My daughter's birthday falls .............. October. (on / in)
7. Sushil was married ..............
2007. (at / in)
plz fast