She is very busy before 12:00 同义句 She isn't very _____ _____ 12:00.
问题描述：
She is very busy before 12:00 同义句 She isn't very _____ _____ 12:00.
答
free until
not、、、until
直到什么时候
答
free before
答
She is very busy before 12:00 同义句 She isn't very _free until__ 12:00.
答
free until