mary was playing the piano at that time .Later she talked to her friend on the phone. sam was watching the basketballgame at that time. He feil it was a pity, because it was exciting. then he went to bed.Mrs Brown was reading a book. After the power failure,he took a walk on the street. Uncle Li was the unluckiest one of them. He was in the lift at that time. He could not go out .he was frightened. He had to called for help.How poor he was!