問題詳情

23. Professor Thompson _____ three books since 2011, and she is working on her fourth.
(A) has writing
(B) has been written
(C) wrote
(D) has written
(E) writes

參考答案

答案:D
難度:簡單0.771429
統計:A(3),B(3),C(0),D(27),E(0)