問題詳情

(  )30.I ________ much homework when I was a student.
(A) was did 
(B) used to do 
(C) took time doing 
(D) used to doing

參考答案

答案:B
難度:簡單0.761905
統計:A(5),B(48),C(2),D(5),E(0)

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