問題詳情

Mr. Anderson does not look forward to traveling by train_____ the schedules are too irregular and the service is usually poor.
(A)why
(B)which
(C)when
(D)because

參考答案

答案:D
難度:簡單0.817434
統計:A(14),B(37),C(21),D(497),E(0)

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