問題詳情

30.I __ use a clock to wake me up because at six o'clock each morning the train comesby 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)