Good zoos have changed their focus and are now (1) ______ to environmental problems, such as the decline in wildlife and loss of habitat.

They will send him abroad to study.

=> He _____________________________.

"Please give Tom the card." Mary said to me

=> Mary told me ____________________________.

You will ______ some interesting new things in class next week.

Indeed, scientists believe that a third of (2) ______ animal and plant species on Earth risk extinction within this century.

Aquariums participate in Species Survival Plan Programmes, (4) ______ involve captive breeding, reintroduction programmes and public education to ensure the survival of many of the planet's threatened and endangered species.