practice doing 造句 一般现在时两个 一般过去式两个 现在进行时两个
问题描述：
practice doing 造句 一般现在时两个 一般过去式两个 现在进行时两个
答
Simon practices playing football.Nancy practices playing the piano.Simon practiced playing football.Nancy practiced playing the piano.Simon is practicing playing football.Nancy is practicing playing t...