---It’s difficult to get to the other side of the river.---I think a bridge ________ over the river.
I don’t like _____ away for too long.
My sister is ____ more outgoing than me.
---_________is it from our school to the subway station? --- About 8 miles.
-- Who’s singing in the next room? --- It ____ be her . She went to New York yesterday evening
Do you know _____?