30. –May I smoke here ?- If you ____, choose a seat in the smoking section.(A)should (B).could (C)ma

問題詳情

30. –May I smoke here ?- If you ____, choose a seat in the smoking section.
(A)should
(B).could
(C)may
(D)must

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