問題詳情

19. The economy (經濟) is in a slump (不景氣). There _______ be five factories in the town, but now there is only one left.
(A) is used to
(B) used to
(C) gets used to
(D) was used to

參考答案

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