问题补充:
单选题_______Iadmitthattherearestillsomeproblemsaboutthetrafficinthisarea,Idon meanthatitcan besolved.A.WhileB.UntilC.UnlessD.As
答案:
B解析注意到主句中的I don mean….,就不难选出until引导的时间状语从句,表示直到……才
时间:2020-03-28 20:49:11
单选题_______Iadmitthattherearestillsomeproblemsaboutthetrafficinthisarea,Idon meanthatitcan besolved.A.WhileB.UntilC.UnlessD.As
B解析注意到主句中的I don mean….,就不难选出until引导的时间状语从句,表示直到……才