还原疑问句为 this factory is_____ a lot of students visited yesterday.所以空格处缺一个 is 对应的表语,故填 the one.而 the one 又做后面定语从句的宾语,所以引导词 that 可以省略.
若在原题的 factory 前加上 the 则填 that 或不填.
还原疑问句为 this factory is_____ a lot of students visited yesterday.所以空格处缺一个 is 对应的表语,故填 the one.而 the one 又做后面定语从句的宾语,所以引导词 that 可以省略.
若在原题的 factory 前加上 the 则填 that 或不填.