有关定语从句和独立主格的2道英语题

题目

有关定语从句和独立主格的2道英语题
1.He was very disappointed,for he had sent six planes to search for the missing plane,two of _____ lost in the fog.
A.which B.them C.whom D.what
2. He was very disappointed,for he had sent six planes to search for the missing plane,two of _____ were lost in the fog.
A.which B.them C.whom D.what
不明白两道题因为一个词缺失的原因为什么答案就不一样,请高人详细解答,分析两个句子!谢谢!

答案

问题:不明白两道题因为一个词缺失的原因为什么答案就不一样?
Answer:
因为Lost 是动词Lose 的过去分词.
(1)句中"two of __them___ lost in the fog."
此部分是独立主格结构:由"主语+分词短语"构成
(2)句中"two of __which___ were lost in the fog.
此部分是which引导的非限制定语从句
If you still feel confused,leave a message please