用when或while改写句子1.I was listening to music when someone knock
用when或while改写句子 1.I was listening to music when someone knocked at the door 2.While Tim was riding his bicyle,he saw the alien 3.When I was John,he was wearing a freen shirt
Someone knocked at the door while I was listening to music. Tim was riding his bicyle when he saw the alien. I was John while he was wearing a freen shirt