___(be).from? ___...___(come) from?
问题描述：
___(be).from? ___...___(come) from?
1.___polar bears 2.___( come)from the Arctic?
yes,3.___4.___
5.___（be）the tiger from Asia? Yes,6.___ 7.___
答
1.Do,
2.come
3.they
4.do
5.Is
6.it
7.is