susan arrived here a week 空格,and has been here ever 空格.
问题描述:
susan arrived here a week 空格,and has been here ever 空格.
a.befor;ago b.befor;since c.ago;befor d.ago;since 选一个
答
D
苏珊一周前来的这里,从那之后就一直待在这里了.