問題詳情

45 My sister has a lot of fun _____ her English with a pen pal in the U.S.
(A)of practice
(B)practicing
(C)to practice
(D)of practicing

參考答案

答案:B
難度:適中0.49317
統計:A(36),B(686),C(324),D(185),E(0)

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