問題詳情

8.We________three earthquake drills so far this month, yet not once has the firedepartment respondeD
(A) have had
(B) are having
(C) had
(D) have

參考答案

答案:[無官方正解]
難度:非常困難0
統計:A(0),B(0),C(0),D(0),E(0)

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