a private vehicleeffective measureslitterrecycleunbearablelaws and policiesregulatepreserve1. The problem is that more and more people have a _____________ now.
a private vehicleeffective measureslitterrecycleunbearablelaws and policiesregulatepreserve2. The government should _____________ traffic.
a privatevehicle effective measureslitterrecycleunbearablelaws and policiesregulatepreserve3. The noise of the traffic sometimes is ___________.
a private vehicleeffective measureslitterrecycleunbearablelaws and policiesregulatepreserve4. Our government is trying to implement some ________________ to prevent the situation from getting worse.