問題詳情

13. It is said that Mr. Liu isn’t happy about our work, which _______ yesterday.
(A)should be done
(B)should have been done
(C)must be done
(D)will have been done

參考答案

答案:B
難度:適中0.5
統計:A(0),B(1),C(1),D(0),E(0)

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