問題詳情

4. The conference center is unavailable every day between six _______ seven o’clock due to cleaning and maintenance.
(A) and
(B) of
(C) if
(D) yet

參考答案

答案:A
難度:非常簡單0.907895
統計:A(207),B(13),C(2),D(6),E(0)

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