Theoldtownhasnarrowstreetsandsmallhouses

来源：语文精选馆 3.23W

The old town has narrow streets and small houses________ are built close to each other.

A．they　　　　　　　　 B．where

C．what D．that

解析：句意：这座古老的城镇街道狭窄，小房子挨得很近。关系代词that代替先行词small houses，在从句中作主语。