单项选择题
The phrase "white elephant" is used to describe something that the owner ()
A. loves to keep B. bought cheap C. wants to get rid of D. wants to sell
单项选择题 He left school()the age of sixteen.
单项选择题 --I can't see the blackboard very well.--Perhaps you need ()
单项选择题 He did it()gratitude for everything she had done for him.