分类：教育/科学-学习帮助
问题：七年级英语选择题Jimis__butDavidis__.a.En 
Jim is __ but David is __.a.  ,American    English ,an   English ,American  d. English ,an American
回答：选A,如果前面加A或者AN的话,后面就要跟名词.比如AN ENGLISHI MAN.