john is doing his homework in his room.改为否定句They are planting trees on the hill.改为一般疑问句I think you are right.改否定句They are (playing volleyball)on the beach.对括号里的内容提问The white dog is (running after me.)对括号里的内容
问题描述：
john is doing his homework in his room.改为否定句
They are planting trees on the hill.改为一般疑问句
I think you are right.改否定句
They are (playing volleyball)on the beach.对括号里的内容提问
The white dog is (running after me.)对括号里的内容
答
John isn't doing his homework in his room.What are They planting trees on the hill?I don't think you are right.What're they doing?What's the white dog doing?最好加激愤,很累的~~.``