相关msorrybutthere的文学知识

问题详情：---I’msorry,butthere’snosmokingonthisflight.---Oh,I______that.Sorry,Iwon’tagain.A.don’tknow    B.didn’tknow   C.won’tknow   D.haven’tknown【回答】B知识点：动词时态与语态题型：选择...