5、mals.【答案】who【解析】考查定语从句。句意:它们被他们的主人训练地很好,它们的主人在照顾这些动物方面很有经验。先行词为masters(主人),且从句缺主语。故关系词填who。6.(2019·新课标III卷·短文改错)Inthecafe,customerswillenjoythemselvesinthehistoricalenvironmentwhatiscreatedforthem.【答案】In the cafe, customers will enjoy themselves in th
6、e historical environment is created for them. 【解析】本句考查定语从句。先行词environment在从句中做主语,指物,关系代词用that/which。故把what改为that/which。7.(2019·浙江卷·语法填空)Ontheedgeofthejacket,thereisapieceofcloth______givesofflightinthedark.【答案】that/which【解析】考查定语从句。这是个限制性定语从句,先行词是clot