問題詳情

16. ________ , Mary usually follows the direction carefully.
(A)When taking drugs
(B)When takes drugs
(C)When took drugs
(D)When in taking drugs

參考答案

答案:A
難度:簡單0.843478
統計:A(97),B(10),C(4),D(2),E(0)

用户評論

賴思妘】評論

nnnnnnnnnnnnn省略主詞,主動的話用ing代替