The person changed his clothes and wore dark glasses to avoid __________.
Either you or one of your students_________ to attend the meeting that is due tomorrow.
. Mr Smith is ______ a good teacher ______ we all respect.
_______ a chance, we are bound to visit the 2010 Shanghai EXPO.
The doctors did all they could _______ him _______.
-- You speak very good English! -- Thanks. I_______ English since I was a small boy.