一、单项选择
1.—What ______ do you like best? —Football.
A.food B.subject C.sport D.music
2.After class, I have sports ______.
A.at two hours B.for two hours C.for a hour D.at an hour
3.My mother works all day.She is very ______ every day.
A.interesting B.old C.relaxing D.busy