--- What’s the matter? You are like that for a few minutes. --- Well, it is bound     . I’m thinking if we need get the wet clothes back to the room.

To celebrate the New Year, the students stayed in the classroom after school, _____ the performances and ______ the room.

China recently tightened its waters controls near the Huangyan Island to prevent Chinese fishing boats from _______ in the South China Sea.

—Shall I turn on the TV, Mom?—No. You should be quiet _____ wake up your sleeping brother.

—Amy, please tell the people ______ for their turns to come to my office five minutes later. — Yes, sir.