We could not reason out the way the robbers escaped,because we were unable to find any ________ of them.
The fire spread through the hotel very quickly but everyone ____ get out.
____caused the accident is still a complete mystery.
Mary __ __ be in Paris, for I saw her in the town only a few minutes ago.
Peter __ _ come with us tonight, but he isn’t very sure yet.
----Are you coming to Jeff’s party﹖ ---- I’m not sure. I __ __ go to the concert instead.