一,用what,where,what color,whose,what,time,who填空

一,用what,where,what color,whose,what,time,who填空
1.____are they?They're tigers.
2.——are these、They are red pens.
3.____are the boys?In the playground.
4.____is the apple、Red.
5.——is it?Seven.
6.____pen is this?Peter's.