(2012·辽宁高考)One of our rules is that every student ________ wear school uniform while at school.

Tom, you ____ leave all your clothes on the floor like this.

It was playing video games that took the boy too much time that he          have spent learning．

---Thank you for inviting us.Tell your wife that she gave us a perfect party.---I______. See you later.

— Shall we meet at the station at 8 a.m.? — In fact we _________. The train _________ until 10 a.m..