By the time you come back, your aunt ______ for Nanjing to attend a meeting.
You know the boy is ____ playing the piano.
______ do you like the trip to Wuhan?-It’s wonderful.
He was finally admitted to Beijing University. Never in all his life ______ so happy.
Hello, this is Jack. May I speak to Tom?– Sorry, he isn’t in at the moment. If he _______ back, I’ll ask him to call you back.