問題詳情
16. Mary has a lot of letters to write today. She ___ all afternoon and she _____ yet.
(A) has been writing; hasn’t finished
(B) has written; hasn’t finished
(C) writes; doesn’t finish
(D) wrote; didn’t finish
參考答案
答案：A
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)