英语选修6译林牛津版unit 2同步巩固练习（8）（答案） 高二英语m6u2巩固练习八一. 单项选择 1. she has been practising _______ the same tune on the piano for nearly an hour. a. play b. playing c. to play d. be playing 2. the news that he has won the first prize makes his parents _________ him.
