问题描述:
He has made another wonderful discovery,____of great importance to science.
A which I think it is B which I think is 高中的英语老是考些什么 it is important to do 还有,为什么这道题选择B,其中有些句子不需要it 而有些又是不需要is ,有些句子中it is都需要,我已经被弄得晕头转向了,请人帮我解答下,最好配上例句.加些语法知识,非常感激.
A which I think it is B which I think is 高中的英语老是考些什么 it is important to do 还有,为什么这道题选择B,其中有些句子不需要it 而有些又是不需要is ,有些句子中it is都需要,我已经被弄得晕头转向了,请人帮我解答下,最好配上例句.加些语法知识,非常感激.
问题解答:
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