第 1 题 · 高考
It is evident that he worked very hard, because his project turned out well.
核心词：evident ˈevɪdənt adj. 明显的
很明显他工作很努力，因为他的项目完成得很好。
一般过去时it 形式主语 + 原因状语从句短语 it is evident that短语 turn out well
It is ___ that he worked very hard, because his project turned out well.
第 2 题 · 高考
The surgeon performed the operation successfully, which saved the patient's life.
核心词：surgeon ˈsɜːdʒən n. 外科医生
外科医生成功实施了手术，这救了病人的命。
一般过去时which 非限制性定语从句短语 perform an operation短语 save one's life
The ___ performed the operation successfully, which saved the patient's life.
第 3 题 · 高考
The United Kingdom is a country in Europe, which has a long history.
核心词：kingdom ˈkɪŋdəm n. 王国
联合王国（英国）是欧洲的一个国家，有悠久的历史。
一般现在时which 定语从句短语 the United Kingdom短语 an animal kingdom
The United ___ is a country in Europe, which has a long history.
