单项选择题
A.The Invention of Umbrella. B.The History of Umbrella. C.Umbrella-A Symbol of Honor. D.Who Used Umbrella First
A.Social Customs and Behaviour B.Social Life C.American and British Customs D.Promptness Is Important
A.He should find an excuse. B.He should ask for excuse. C.He should say "Sorry" D.He should telephone to explain his being lat