Từ đoạn văn sau mn giúp e điền vào chỗ chấm với ạ huhu (ko quá 3 từ nha mn) More than two thousand years ago, Roman emperor Augustus organized a group of watchmen whose job was mainly to look out for fires and sound an alarm in the event of one. For many centuries that followed, fire equipment was limited to buckets of water that got passed from person to person. The ax was later found to be a useful tool both for removing fuel in large fires and for opening holes to allow smoke and flames to escape from burning buildings. Watchmen also learned to create firebreaks with long hooked poles and ropes in order to pull down structures that provided fuel for a fire. -Cause: Men used poles and ropes to pull down buildings near a fire. -Effect The fire did not have ....................................