問題詳情

【題組】31. What happens if the power suddenly ________ when you are using the computer to type a paper?
(A)went out
(B) goes off
(C) will go off
(D) have gone off

參考答案

答案：A[無官方正解]
難度：適中0.454545
統計：A(5),B(4),C(2),D(0),E(0)