单项选择题
Wolfgang was quiet when his sister practised the piano because （）
A．he loved music B．he liked his sister C．he didn't want to make a noise D．he didn't feel well
单项选择题 shortly after tea Leopold heard the music from upstairs. He was astonished because （）
单项选择题 Leopld’s family was（）
单项选择题 At tea-time the family had （）
