---Whocleanedtheblackboardyesterday,Dick?---John

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問題詳情:

---Whocleanedtheblackboardyesterday,Dick?---John

---Who cleaned the blackboard yesterday , Dick?

---John ________.

A. cleaned   B. does    C. did    D. is

【回答】

C

知識點:動詞時態

題型:選擇題

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