第 1 题 · 高考
The confounder affects the result, which scientists must control in tests.
核心词：confounder kənˈfaʊndə n. 混淆因素
混淆因素影响结果，科学家必须在测试中控制。
一般现在时affect + must do短语 a confounder短语 control a confounder
The ___ affects the result, which scientists must control in tests.
第 2 题 · 高考
The constitution protects people's rights, which every citizen should know.
核心词：constitution ˌkɒnstɪˈtjuːʃn n. 宪法
宪法保护人民的权利，每个公民都应了解。
一般现在时protect + should do短语 the constitution短语 protect rights
The ___ protects people's rights, which every citizen should know.
第 3 题 · 高考
Cordelia looked after her father kindly, which moved the whole family.
核心词：cordelia kɔːˈdiːliə n. 科迪莉亚（人名）
科迪莉亚体贴地照顾父亲，感动了全家人。
一般过去时look after + which 定语从句短语 Cordelia短语 look after
___ looked after her father kindly, which moved the whole family.
