A:When________it________?(arrive)B:Half an hour ago.

A:When________it________?(arrive)B:Half an hour ago. When did you ___ ---Half an hour ago.A get B reach C arrive when ()it ()?(arrive) half an hour ago －when did you ＿＿?－half an hour ago.a get b reach c arrive d He was here().A.half an hour before B.half hour ago C.half a When did you_____here?An hour ago.A.get B.reach C.arrive D.. the bus arrive here half an hour ago . lt is here now 的同义句是什 The train_____ (arrive) in half an hour they walked for.A,an hour B.half a hour C,half an hour 选哪个 half an hour or a half hour? a half hour还是half an hour? half an hour ago 什么意思?