— He’s fifteen years younger than you!—_________ ?
The lively boy suddenly appeared to be ________ quiet, so his mother knew something unusual must have happened.
________ Mayan(玛雅)Calendar marks the end of the earth around December 22, 2012, which has caused ________ great panic among people.
— Shall we go out for a walk? — Oh, ________.
— 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.