216. If you feel dizzy in a coal-burning room, that’s lack of . Please open the window and air the room at once.
_______ you’ve got such a good chance, you might as well make full use of it.
----- ________ for the fire! ----- It's OK. I’ll be careful enough.
There is some doubt whether he will______ at the meeting.
The reason______ he was late for work was______ he didn’t get up early.
Before building a house, you will have to ______ the government’s permission.