For a moment Tom was ________ how to reply to the question.
--- 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 ______.
When the holidays were drawing near, I asked my American friends ___ was the best way to travel in the United States.