—May I         this pair of blue jeans? —Yes, you        .

— I regret to say that I          have shouted at you the other day．— Forget it． I was a bit out of control myself．  

 — Do you know where Mary is? I couldn’t find her anywhere. — Well . She        have gone far—her coat’s still here.

—     you play the piano at this time of the day ? I need a good rest for tomorrow’s test. — Sorry.  

—Must I go with you?—No, you ________.