材料:“特区是个窗口,是技术的窗口,管理的窗口,知识的窗口,也是对外政策的窗口。”
下列各句中,划线的成语使用恰当的一项是( )
— Can you play the piano?
—Yes, I . I often practice it on weekends.
— What's your favourite food?
— ________.