Hi, somebody ______ the window, please. It’s too cold in here.
---Can I smoke here? ---No. On no condition _____ in the museum.
All his attention _____ on the computer game, he even didn’t notice his mother enter the room.
The two boys are alike in age, but _____ they are as different as day and night.
Under the circumstances I usually think of the great effort and courage it _____ for the girl to come back and apologize.
Obama, _____ president of the USA, won _____ Nobel Prize for Pease in 2009.