She joined the singing group last year改为同义句She ___ ____ ___ _____ of the singing group____ last yearIt's____ ______ ______ she ____ the singing groupOne year ____ ____ _____ she ____ the singing group[一空一词]
问题描述：
She joined the singing group last year改为同义句
She ___ ____ ___ _____ of the singing group____ last year
It's____ ______ ______ she ____ the singing group
One year ____ ____ _____ she ____ the singing group
[一空一词]
答
1 has been a number ,since
2 last year that ,joined
3 has passed since joined