一道初一名词练习题..

问题描述:

一道初一名词练习题..
--What did you do last week?
--Last week we visited____________
A.a friend of my uncle's
B.uncle's
C.a friend of my uncle
D.uncle's a friend
选那个?为什么?

A
a xxx of 结构后要接名词,且要语意成立,只能选A,意为"我叔叔的所有朋友中的一位"