______ does this scarf belong to? — Let me see. Oh, it may be ______.

I think this bike belongs our teacher. She likes red bikes.

Listen, who______ in the classroom?

About one third of the population in Beijing and Shanghai ______ netizens, but in poorest areas, only three or four percent ______ online.

Excuse me, I want to buy some stamps. Where can I find a post office? — I know ______ not far from here. You can find ______ without difficulty.