we've just been told that we need to clean our room first and____(they）a little later
问题描述：
we've just been told that we need to clean our room first and____(they）a little later
答
theirs +1
答
填 they ,后面省略了need to clean their room..
答
theirs~
如果是省略的话要省略到to为止~不然不能构成省略~