——I haven't got a camera.——I think you should buy_______. It's useful for you.
-- _______ teaspoons of salt do we need? --Two.
-- _ milk do we need ? --Two glasses .A. How much B, How many C. How often D. How far
Cut up these apples and pears and then .
I think there will be _____ people and ______pollution.
It may take _________ years to make such robots .