Could have been who helped Suny get her work done?
Could have been who helped Suny get her work done?
A they...it B they...them C it...them D it...they
选什么？为什么？
人气：115 ℃ 时间：2020-03-25 10:47:03
解答
c 因为这里的it 是形式主语代替后面的真正主语they
还原成陈述句it could have been them who helped suny get her work done.
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