阿摩線上測驗
57. So many of the test questions are so difficult that no student should feel ashamed of _____ the answers.
(A) being not know
(B) do now know
(C) know not
(D) not knowing
答案：登入後查看
統計： A(12), B(4), C(1), D(27), E(0) #3348687
統計： A(12), B(4), C(1), D(27), E(0) #3348687
