which of the subjects that you are studying is the most diffcult
题目
which of the subjects that you are studying is the most diffcult
1 为什么用of 不用可以么
2 that 可以省略么
答案
of 要用,subjects 多个 中的 一个,与后面 is the most 单数呼应;
that 可以省略.
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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