A _ friend is a true friend.A.real B.really C.truly D.truth

问题描述:

A _ friend is a true friend.A.real B.really C.truly D.truth

选择A,需要一个形容词来修饰名词(例如a beautiful girl ),也可以用一个名词修饰名词(a book shop ),B和C都是副词,而D是名词,意思也不对.所以选A