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来源: EnLearner 于 2011-07-01 21:22:25 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (333 bytes)
回答: Sorry, Just saw this message. 由 lmao 于 2011-07-01 07:10:53

 

Now it seems to me the rule is that the conjective word is optional if it is followed by a clause used as an object.

In your example, the clause is used as an adjective and the conjective word, "that", substitutes "students" so it can not be taken away.

 

 

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