第 1 题 · 四级
Many children die from preventable diseases, which makes us feel sad.
核心词：preventable prɪˈventəbl adj. 可预防的
许多孩子死于可预防的疾病，这让我们很难过。
一般现在时die from + 介词短语 + which 从句 + make sb feel短语 preventable diseases短语 preventable accidents
Many children die from ___ diseases, which makes us feel sad.
第 2 题 · 四级
The dog hurt its paw, which the owner gently bandaged.
核心词：paw pɔː n. 爪子
狗伤了爪子，主人轻轻地给它包扎。
一般过去时主谓宾 + which 从句短语 an injured paw短语 a dog’s paw
The dog hurt its ___, which the owner gently bandaged.
第 3 题 · 四级
The whole city was under a cloak of thick mist, which lasted all morning.
核心词：cloak kləʊk n. 斗篷，覆盖物
整座城市笼罩在浓雾之下，持续了整整一个上午。
一般过去时主系表 + 介词短语 + which 从句短语 under a cloak of短语 a cloak of mist
The whole city was under a ___ of thick mist, which lasted all morning.
