单项选择题
If you want to learn something, you had better pay（）in class.
A.care B.respect C.attention D.notion
单项选择题 In addition to rice, we need to（）our diet with fish, meat and vegetable.
单项选择题 My parents are not interested in modern music. They are（）the times.
单项选择题 Edgar began（）as an office boy years ago.
