The professor spoke so fast that I found __________ him.
Do you have trouble ______ the post office?
The world is _____ seven continents and four oceans.
The boy wanted to ride his bike in the street, but his mother told him _____.
He kept the light in his room ______ the whole night.
----- We haven’t heard from Jane for a long time. ----- What do you suppose ______ to her?