問題詳情

21. A few minutes after _______ on the website, first-time InterShop users should receive ane-mail confirming their password and ID.
(A) register
(B) registered
(C) registering
(D) to register

參考答案

答案：C
難度：適中0.595238
統計：A(4),B(5),C(25),D(4),E(0)