Mother blamed the dog for breaking the glass, but in fact I _____.

—Will you attend the meeting this afternoon?　　　　—But I ________ told anything about it.

--Have you ever been here before? ---Well, I once _________ here for four years. Those days are really unforgettable. 

－_______ leave at the end of this month.－I don’t think you should do that until _________ another job.

 Class is beginning. Will you please get the blackboard      .