they have three hats.(改成否定句)
they don't have three hats.
tom has a nice backpack.(改成一般疑问句)
Does tom have a nice backpack?
he has a ping-pong bat(改成否定句)
he doesn't have a ping-pong bat.
they have three hats.(改成否定句)
they don't have three hats.
tom has a nice backpack.(改成一般疑问句)
Does tom have a nice backpack?
he has a ping-pong bat(改成否定句)
he doesn't have a ping-pong bat.