問題詳情

We are celebrating our best year ever, ................taking the time to thank the employees and business partners who have contributed to our success.
(A) while
(B) for
(C) when
(D) not

參考答案

答案:A
難度:適中0.52974
統計:A(285),B(199),C(36),D(6),E(0)

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