( dangerous, land, problem, noise, ajr rubbish, serious, water, roadworks, smoke, safe) The pollution is Hong Kong is a ... problem. We have ... pollution which makes the rivers and the sea very dirty. Some seafood is no longer ... to eat now. We have .. pollution because of the ... made by cars and factories. ... pollution is also getting worse because of the .. and traffic in our streets If we allow this to go on, Hong Kong will become a ... place to live in. Therefore we must do something before it is too late. If we don't stop making a lot of smoke, we won't have fresh air to breathe.​