UNIT 10: BE WILD
While many animals ______ (hunt) by predators in the wild, conservationists ______ (protect) endangered species in sanctuaries.
ARE HUNTED, PROTECT
In the past, entire species ______ (kill out) due to excessive hunting, but today, strict laws ______ (enforce) to prevent extinction.
were killed out, are enforced
Every year, thousands of birds ______ (migrate) to warmer areas, while their habitats ______ (destroy) by climate change.
migrate, are destroyed