you look very tired._______ at all last night?No,not really.i'm tired out now.A.were you sleeping B.did you sleep
问题描述：
you look very tired._______ at all last night?No,not really.i'm tired out now.
A.were you sleeping B.did you sleep
答
You look very tired.Didn't you sleep at all last night?No,not really.i'm tired out now.因为句中有at all 所以我确认did应该是否定的.如果去掉at all的话此句应该是这样的You look very tired.Did you sleep well last night?No,not really.i'm tired out now.