When we are crossing the streets,we must look out_____ the t

When we are crossing the streets,we must look out_____ the t we must teach the children to use the zebra crossing when ( 根据句首完成句子 We must look a___ when we cross the street We use t which side must passengers look first when crossing the stre ：1.We must look left and right when we ____(across) the road We must walk on the right side of the street when we are in 1.Don't drive so fast.We must slow down when we drive()the t we (-------)the date when we are leaving when we are studying,we must put our heartinto the book的翻译 when we are doing the exercise,we must keep our eyes_______ When we are studying,we must put our hears into the book. we must ()when the light is yellow