单项选择题
A.We’re all eating in the cafeteriaB.No,it’s not made of glass.C.The class is meeting in room 300.
A.I didn't sleep last night.B.The tire needs air.C.We're required to wear ties at work.
A.I turned in my expense report yesterday.B.Yes, but it's really delicious.C.The waitress will bring you some water.