. --- Have you been wasting time on computer games again ?  --- _______. I’ve been studying a lot and I need a break.

---Will you join us to play basketball on Saturday afternoon?---_________, but I promised to go swimming with Eric.

—You must obey every word of mine!—__________ I don’t?

---May I know your fax number?---__________.

—Remember to turn off the lights when you leave the room.— ________.