問題詳情

33. The university estimates that living expenses for international students ________ around $8,450 a year,which ________ a burden for some of them.
(A) are；is
(B) are；are
(C) is；are
(D) is；is

參考答案

答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)