1.否定句：The dog isn't in the garden,either.
疑问句：Is the dog in the garden,either?
2.否定句：It isn't running across the grass.
疑问句：Is it running across the grass?
3.否定句：It isn't running after a cat.
疑问句：Is it running after a cat?
1.He is opening the window.
2.She is sharpening this pencil.
3.She is dusting the cupbord.
4.She is emptying the basket.
5.He is looking at picture.