問題詳情
31.All his work_______ already.
(A) has been done
(B) has done
(C) has be done
(D) is being done
(A) has been done
(B) has done
(C) has be done
(D) is being done
參考答案
答案：A
難度：非常困難0
統計：A(0),B(0),C(0),D(2),E(0)
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