问题标题:
He___morethan5000EnglishwordsbeforeheenteredtheuniversityattheageAhasAhaslearnedBwouldbeleanedCleaned
问题描述:

He___morethan5000EnglishwordsbeforeheenteredtheuniversityattheageAhas

AhaslearnedBwouldbeleanedCleaned

成礼智回答:
  这里因该是填上hadlearnt,表示过去的过去用过去完成时,所以这里没有答案奥
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