There is a possibility that these hens could be frightened and lay fewer eggs a sudden loud noise.
A．should there be B．there was
C．would there be D．there having been
—I’m going to the post office.
— you’re there, can you buy me some stamps?
A．Because B．While C．As D．If
—How long in America?
—Two years. I came back last month.
A．have you studied B．do you study
C．would you study D．did you study
What will we do when all the oil in the world has ?
A．run out of B．been given out C．been used up D．given off
She was a person and wouldn’t let anyone or anything stop her.
A．reliable B．determined C．stubborn D．concerned
So clearly English that he can always make himself understood.
A．he speaks B．he spoke C．did he speak D．does he speak
