問題詳情

30．I _use a clock to wake me up because at six o'clock each morning the train comes by my house．
(A)couldn't
(B)mustn't
(C)shouldn't
(D)needn't

參考答案

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