Tom is English.求答为什么english前不加an?

Tom is English.求答为什么english前不加an? Tom is ( ) A.an English B.English 谢 Tom is English.前面为什么没有the Tom with his classmate is having an english lesson now 这里为什么 Is that boy__?A,an English B,English选择?为什么? There's an English book over there.An English book is Tom's. brother is an Tom's teacher English ( .)连句 为什么不能说He is an English Jack is English.He is an English boy.为什么第一个English不用冠词? Lucy is ____American .Tom is ___ English .选择 A a an B an an my name is tom I am _______ A a English B an English C Engli Mike is an English