問題詳情
20. ______ during the economic downturn, many middle-class families received their crash course to learn the value of thrift.
(A) To force to be frugal
(B) To force being frugal
(C) Forcing to be frugal
(D) Forced to be frugal
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增