1.What can you see in the sky (对a bird划线提问)
2.Where can you see a bird?(对in the sky 划线提问)
3.Who can see a bird in the sky?(对I 划线提问)
1.What can you see in the sky (对a bird划线提问)
2.Where can you see a bird?(对in the sky 划线提问)
3.Who can see a bird in the sky?(对I 划线提问)