Tom was noticed __into that room at that time.a .walk b.walks c.walking d.walked

Tom was noticed __into that room at that time.a .walk b.walks c.walking d.walked
Tom was noticed __into that room at that time.a .walk b.walks c.walking d.walked

Tom was noticed __into that room at that time.a .walk b.walks c.walking d.walked
C
notice sb doing sth改成被动.
notice sb do sth改成被动为sb be noticed to do sth.（即主动不加to的,改成被动需加to）
另外两个不与考虑.

选择C选项。这是一个被动句，at that time 强调使用过去进行时，所以应选择C：walking
如果还原成主动句式，应为：Someone noticed Tom walking into that room at that time.可是我记得notice 被动时不是要用to do么，或者was notice done么谢谢了再帮我解答下从语法角度讲，如果有to do 选项, 是可...

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选择C选项。这是一个被动句，at that time 强调使用过去进行时，所以应选择C：walking
如果还原成主动句式，应为：Someone noticed Tom walking into that room at that time.

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