Since no other way to escape from the flood, ____ only safe thing is to take ____chance.
--- Do you know _____ Mr. Black’s address is. --- He may live at No. 18 or No. 19 of Bridge Street. I'm not sure of _____.
--- Do you know him? --- Yes, but I can’t remember ________I met him for the first time. A. where B. what C that D. if
They have not made any decision on ______ they are going to do to deal with the waste and control pollution.
Sometimes we are asked ______ we think the likely result of an action will be.
He was lucky enough to sell his car for exactly ______.