I think_____necessary for us to learn English well.A.it B.that C.ist D.that"s请告知理由,谢

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I think_____necessary for us to learn English well.A.it B.that C.ist D.that"s请告知理由,谢
I think_____necessary for us to learn English well.A.it B.that C.ist D.that"s请告知理由,谢

I think_____necessary for us to learn English well.A.it B.that C.ist D.that"s请告知理由,谢
选A
这道题考的是形式宾语,真正的宾语是不定式后面的,而前面要用it代替,而think、find这样的词后面的is可以省去,故选A

C it's it's 指代learn English well

C it's 这是形式主语一般是：It + is/was + 形容词（adj.)+to do sth.

i i I I, I I I i i i i -I I i i i “I i