Hardly ______asleep when someone knocked at the door.A,she had fallen B,she fell C,had she fallen D,did she fall
Be quick, _____ we’ll be late for school.
— Jane, is this your umbrella? —No, it’s not _____. I didn’t take one this morning.
Three million _______ a large number. You can make it _______.
Over fifty countries _______ the AIIB(亚投行) so far.
—Excuse me, madam. Could you please tell me _________ the bus arrives? —Sure. At 9:00.