問題詳情

15. ( )A:When do you go to school every morning?B:___ 7 a.m.
(A) On 
(B) At 
(C) In 
(D) For

參考答案

答案:B
難度:非常簡單1
統計:A(0),B(5),C(0),D(0),E(0)