Li Bin is a fat boy.why is he (s ) fat

Li Bin is a fat boy.why is he (s ) fat Why is he s________ fat? Tom is a fat boy,____he? The boy is fat.I think he is a Iittle o----. The boy's name is Li Bin.He is my friend.(改为同义句) 单项选择1.The boy is ____ fat because he eats _____ junk food.A. HE IS THE FAT CAT he is fat可以吗? He is something fat.对吗? he still is fat .对么? He is a friend of_____ A Tom's father's B Tom's father C Fat This is a fat boy. 怎么改为否定句