Nowadays people are more aware that wildlife all over the world is in (1)    . Many species of animals are threatened, and could easily  become (2)     if we do not make an effort to protect them. There are many reasons for this. In some cases animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught (3)             , and sold as pets. For many animals and birds, the problem is that their habitats-the place where they live-is disappearing. More land is used for farm, for houses and industry, and there are fewer open spaces than there once were. Farmers use  powerful  chemicals  to  help  them  grow  better  crops,  (4)         these chemicals pollute the environment and harm wildlife. The most successful animals on Earth, human beings, will soon be the only ones (4)    unless we can solve this problem.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks

(1) ..................

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