第 1 题 · 四级
The forest is inhabited by many wild animals, which the rangers protect.
核心词：inhabit ɪnˈhæbɪt v. 居住于，栖息于
森林里栖息着许多野生动物，护林员保护它们。
一般现在时被动语态 be inhabited by + which 从句短语 be inhabited by短语 wild animals
The forest is ___ by many wild animals, which the rangers protect.
第 2 题 · 四级
The training is lengthy, which the new workers must complete fully.
核心词：lengthy ˈleŋθɪ adj. 漫长的，冗长的
培训时间很长，新员工必须完整完成。
一般现在时主系表 + which 从句 + must complete短语 a lengthy process短语 a lengthy training
The training is ___, which the new workers must complete fully.
第 3 题 · 四级
The new law empowers the workers, which gives them more rights.
核心词：empower ɪmˈpauə v. 授权，使能够
新法律赋予工人权力，给了他们更多权利。
一般现在时主谓宾 + which 从句 + give sb sth短语 empower sb短语 give sb rights
The new law ___ the workers, which gives them more rights.
