問題詳情

18. A: ________ has he worked in this factory? B: He has worked in this factory for ten years.
(A) What
(B) How often
(C) What about
(D) How long

參考答案

答案:D
難度:非常簡單0.909091
統計:A(0),B(1),C(0),D(10),E(0)