To keep healthy, Professor Johnson ______ cycling as a regular form of exercise after he retired.
I think I must watch TV now, Dad. I _________ which team will win the game.
The school headmaster forbids ______ in the office. A. smoking B. to smoke C. us smoke D. from smoking
We were listening closely to the lecture yesterday evening when suddenly the light ________.
________ the manager has arrived, we can begin our discussion right away.
He has always insisted on _______ Dr Turner instead of Mr Turner.