I think ---- necessary for a student to master a foreign lan

学习时间:2026-11-15 22:02:24 阅读：8943

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?

苹果过客

2026-11-15 22:02:24

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it 是形式宾语,其实是主语其实就是省略了isI think it （is） necessary for a student to master a foreign language。