問題詳情

26. Should students have questions regarding their assignments, they could write an email to make an appointment with the professor. The professor usually replies within three days as long as he is away on a business trip.
(A)Should
(B)regarding
(C)with
(D)within
(E)as long as

參考答案

答案：E

統計：A:1,B:6,C:1,D:1,E:2

難度：計算中