—Tom must be at home because the light in his house is on.—He ____ be at home, because I saw him playing basketball on the playground.A. must B. can’t C. mustn’t
He looked very confident and calm during the test, but __________ he was extremely nervous.
It was a cold winter night, and there wasn’t anyone __________the boy could turn for help in the street.
___________for his good skill, this doctor has a lot of visitors calling for help all the time.
The harder you__________, the better progress you ___________.
As ________matter of fact, _________ beauty of __________ nature there made an excellent impression on me.