第 1 题 · 四级
The old man cleaned the floor with a broom, which he had bought last week.
核心词：broom bruːm n. 扫帚
老人用上周买的扫帚打扫了地板。
过去完成时with + 工具 + which 从句（过去完成）短语 a broom短语 sweep with a broom
The old man cleaned the floor with a ___, which he had bought last week.
第 2 题 · 四级
What he said was utter nonsense, which made everyone laugh.
核心词：utter ˈʌtə adj. 完全的，彻底的
他说的话完全是胡说八道，让所有人都笑了。
一般过去时主语从句 What… + 主系表 + which 从句短语 utter nonsense短语 make sb laugh
What he said was ___ nonsense, which made everyone laugh.
第 3 题 · 四级
The children took great delight in playing in the snow, which they had never seen.
核心词：delight dɪˈlaɪt n. 高兴；v. 使高兴
孩子们非常喜欢在雪地里玩，他们从没见过雪。
过去完成时take delight in doing + which 从句（过去完成）短语 take delight in短语 with delight
The children took great ___ in playing in the snow, which they had never seen.
