一、 Fill with “While” or “When” 。 1.____ May was talking on the phone, her sister walked in. 2.____ Rita bought her new dog, it was wearing a little coat 3._____ I saw Carlos, he was wearing a green shirt. 4._____ I was dancing, he was singing loudly. 5. _____ Linda finally saw Davy , he was jumping with a dog . 6. I was cleaning my room ________ the fire broke out .