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Peopleoftenremember

練習題3.17W

問題詳情:

Peopleoftenremember

People often remember ________when they heard some important news.

         A. what they are doing          B. what are they doing

         C. what were they doing         D. what they were doing

【回答】

D

知識點:賓語從句

題型:選擇題