Question

【题目】The old town has narrow streets and small houses __________ are built close to each other.

A. they

B. where

C. what

D. that

Answer 1

【答案】D

【解析】句意：这个古老的小镇拥有狭窄的街道和建造得彼此靠得很近的小房子。先行词是small houses ,还原到从句中作主语，所以用关系代词that。A、C两项不能引导定语从句；B项是关系副词，不能作主语。