Look! There is a chair ________ three legs in the meeting room.
--- Jack is a hard-working boy. --- Yes. All of us want to recommend him the Best Student Award.
---You look so tired! ---Yesterday I waited for my mum she came back at 12 o’clock.
---This dress is a little . Can you show me another one? --- What about the orange one?
--- Excuse me, sir. Would you please the total cost of the trip? --- All right, I will make it at once.
--- How _____ hours do you sleep a day? --- Well, about eight hours. But how _____ sleep do we students really need?