問題詳情

23. Mr. Chen __________ tennis in Taipei for a couple of years before he moved to Taichung.
(A)has taught
(B)teaches
(C)had taught
(D)teaching

參考答案

答案:C
難度:簡單0.8125
統計:A(1),B(1),C(13),D(1),E(0)

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