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单选题
[填句补文]But Bali starlings are only found in a small area on the island of Bali in Indonesia. They live in the tall grasslands near the coast. ______ Today there are only 14 left in the wild on a single reserve. More than half of their habitat was converted into farmland， and forest plantation. Many of them were captured and sold as pets.
A、We should take measures to protect them.
B、Bali starlings are very beautiful birds.
C、They grow fast because of a protein rich diet of insects.
D、In 1984， there were only 150 birds left in the wild.
正确答案：D
答案解析：答案选D。空格后面的那句话提到现在这种鸟剩下14只，那么上一句话是否也和它们的数量有关系，看到选项，不难找到正确答案。