When I was walk on the street,I saw a plane_____over my head

When I was walk on the street,I saw a plane_____over my head I saw a UFO-over my head when I was walking toward the bus s When I was walking in the street ,I saw a plane _____over my When I was walking down the street, I saw a plane __ over my On my way home in the street I saw a lady ___ I thought was I saw my friend when I (walk)in the street.(现在完成时) 1We___(walk)along the street when I saw my friend.2Our teach I saw my teacher when I_(walk)in the street填什么?为什么? I saw my friend when I_ (walk)in the street填什么?为什么? A ball hit me on the head ( ) i was walking on the street. A It was Sunday I met my teacher on the street.(A.when B.that) When I was walking in the street yesterday, I saw a UFO ____