4、m A.issmokingpermitted B. smokingispermitted C.smokingisitpermitted D. doessmokingpermit 答案A.这是一个倒装问题。当否定词语置于句首以表示强调时,其句中的主谓须用倒装结构。这些否定词包括no,little,hardly,seldom,never,notonly,notuntil等。本题的正常语序是Smokingispermittedinthemeeting-roomatnotime. 2)Notuntiltheearlyyearsofthe19thcen