All of the flowers now raised here have deyeloped from those ____in the forest.(为什么)a\once they grew b\they grew once c\that once grew d\ once grew

问题描述:

All of the flowers now raised here have deyeloped from those ____in the forest.(为什么)
a\once they grew b\they grew once c\that once grew d\ once grew

A\B首先排除 理由谁一般人都知道
C. that once grew
句中的先行词为those ,而且选项中都有once grew,显然是定语从句,而that做关系副词,在从句中做主语。没有错误
D.once grew
因为本句的先行词those在句中接近句尾,且很多我们看见的句子都有those inxxx,这种只是in xxx修饰those而已,但是本句仍然定语从句,根据原则先行词做从句主语 所以关系副词不能省略。
要是先行词在句前的话,一般很明显,不太会选错,而放句末就故意引诱答题者误判出错
答案为c

d,这题挺熟的,一楼说的不对啊,those 和 that 重复了。

C 定语从句.that作主语.那些曾经生长在森林的花.

D,those已经相当于those who,不必再用that.A中they与those重复,不选。