問題詳情
10.Tim: Ben, why are you taking out your smartphone? No one can use a smartphone in class.
Ben: I know. I already turned it off _________ the class started. I just want to check again.
(A) though
(B) after
(C) until
(D) before
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
用户評論
【miya】評論
(A) 經由(B) 之後(C) 直到(D) ...