第 1 题 · 四级
Try the climb; don’t be such a coward, which you will regret later.
核心词：coward ˈkaʊəd n. 懦夫，胆怯者
试着爬一下，别这么胆小，否则以后会后悔。
一般现在时祈使句 + which 从句（将来）短语 a coward短语 be a coward
Try the climb; don’t be such a ___, which you will regret later.
第 2 题 · 四级
The change had an unintended effect, which the manager had not expected.
核心词：unintended ˌʌnɪnˈtendɪd adj. 无意的，意想不到的
这次改变产生了意想不到的后果，经理没有料到。
过去完成时主谓宾 + which 从句（过去完成否定）短语 an unintended effect短语 unintended consequences
The change had an ___ effect, which the manager had not expected.
第 3 题 · 四级
The gardener trims the bushes every week, which keeps the garden tidy.
核心词：trim trɪm v. 修剪，整理
园丁每周修剪灌木，让花园保持整洁。
一般现在时主谓宾 + which 从句 + keep sth adj短语 trim the bushes短语 trim down
The gardener ___ the bushes every week, which keeps the garden tidy.
