【ithink】Ithinknecessaryforastudenttomasteraforeign...

发布时间:2021-04-03 12:59:22

I think necessary for a student to master a foreign language.A.this B.that C.its D.it正确答案是D.为什么?这样念起来很不通的感觉,我怎么觉得应该是it's? 英语

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【答案】 it 是形式宾语,其实是主语
  其实就是省略了is
  I think it (is) necessary for a student to master a foreign language.
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