问题
选择题
The young couple have been looking for houses,but haven’t yet found _________they can afford.
A.one
B.that
C.them
D.it
答案
A
题目分析:句意:年轻的夫妇一直在寻找房子,但是还没有发现他们能负担得起的房子。这里需要一个代词,指代a house,用one可以泛指可数名词的单数,that是特指可数名词的单数和不可数名词,them“他们”,it特指同类同物,所以选A。