______ regular exercise is very important, it’s not a good idea to exercise too close to bedtime.
— He’s never stolen anything before,______ he? —______ .It’s his third time to be taken to the police station.
Those eggs ______ , please throw them away.
— How many students in your class have visited the White House? —______.
E-mail me______ Lucy @ sina.com or call me______ 55888301.
You ______ to the meeting this afternoon if you have something important to do.