(2014届天津市蓟县第二中学高三第一次模拟考试) As it turned out to be a small house party, we so formally.
— My son spoiled your carpet. Let me buy you a new one. — ________.
Natural disasters occur at ________ times, so it is always difficult to warn people in advance.
________ when your ticket has been checked will you be allowed to take the plane.
Sometimes we can see more than 60 students are ________ in a small school bus, which can easily cause traffic accidents.
— I heard the voices, but couldn’t ________ what they were saying. — Why not go over? It won’t do you any harm.