in the evening they catch buses and trains take them home.take 前填什么单词,有三个单词可以选.帮我看看剑桥英语一道题.in the evening they catch buses and trains take them home.take 前填什么单词,有三个单词可以选.what which who,
问题描述：
in the evening they catch buses and trains take them home.take 前填什么单词,有三个单词可以选.
帮我看看剑桥英语一道题.
in the evening they catch buses and trains take them home.
take 前填什么单词,有三个单词可以选.what which who,
答
which引导定语从句
答
Which.what是代指主语明显这里不是。这里也不指人所以不用who
答
which
这个句子里含定语从句,被定语从句修饰的先行词是buses and trains,
which指代物,而who指代人,what不能引导定语从句.
“傍晚的时候他们搭乘拉他们回家的公交车或火车”