第 1 题 · 六级
The illness impaired his ability to think, which made his family worry a great deal.
核心词：impair ɪmˈpeə v. 损害，削弱
这种疾病损害了他的思维能力，让家人非常担心。
一般过去时主谓宾 + 不定式后置定语 + which 从句 + make sb do短语 impair the ability短语 impair one’s health
The illness ___ his ability to think, which made his family worry a great deal.
第 2 题 · 六级
The student was expelled from school for cheating, which his parents were told about at once.
核心词：expel ɪkˈspel v. 开除，驱逐
这名学生因作弊被学校开除，父母立刻被告知了。
一般过去时被动语态 + 介词短语 + which 从句（被动）短语 expel from短语 be expelled for
The student was ___ from school for cheating, which his parents were told about at once.
第 3 题 · 六级
He is next in line to the throne, which the whole country has known for years.
核心词：throne θrəʊn n. 王位，王座
他是王位第一继承人，全国多年都知晓这一点。
现在完成时主系表 + 介词短语 + which 从句（现在完成）短语 take the throne短语 next in line to the throne
He is next in line to the ___, which the whole country has known for years.
