单项选择题
Do you know why John didn' t ()at the party yesterday evening
A. show off B. show down C. show up D. show in
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 The phrase "white elephant" is used to describe something that the owner ()
