()6.-Doyouknowwhenhewillcomeback-____.
()6.-Doyouknowwhenhewillcomeback____.
A.OnceaweekB.ForaweekC.TillaweekD.Notuntilnextweek为什么选D请详解,
8.ThefactorywhichIvisitedyesterdaywasnottheonewhereIonceworked.
这是由which引导的定句从句+where引导的地点状语从句吗?