While Tom was playing with the balloon,he saw a plane ___ (f

While Tom was playing with the balloon,he saw a plane ___ (f while Tom saw the UFO,he was walking down the street with hi When I first saw Jerry,he was playing with Tom.改为同义句 求英语句子翻译When Lang was two years old he saw Tom playing the pi He got his leg ( ) while he was playing football with a grou He saw his cat was playing with a dag?是过去进行时吗? 英文改错He was walking along the road while he saw a well uncove i saw a boy.the boy was playing with a cat. John saw a cat in a tree while he was taking photos in the g He was ___ ___ the bus when he saw a thief. While John was walking to school ,he saw a cat in the tree 对 I saw that he was playing football just now.改为同义句 I saw ___