My father _________ Beijing on business for three days. He will be back in two days.
—May I use your computer, Mr. WU? —______.
This dress still looks pretty on you, _______ it is out of style.
— Is Lily good at singing? —Yes , she is.We often hear her_______ in the next room.
— Will you go to Sandy’s birthday party? — I won’t go unless Tony______.
—_____will you stay here? —Until tomorrow afternoon.