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Luyện thi IELTS Grammar: Đề cập đến danh từ (Referring to nouns)

a, an or the?

Thời gian

Điền vào các chỗ trống a / an hoặc the hoặc dấu  nếu không có mạo từ nào là cần thiết.


X Local legends say that  Borneo's few thousand wild elephants are descendants from those brought to  island from India or Malaysia as  gift to  sultan in       eighteenth century. Biologists from  Columbia University's Centre for Environmental Research and Conservation compared DNA samples from Borneo elephants with Asian elephants in Sumatra, India and elsewhere.  findings confirmed their suspicions: Borneo's elephants are genetically different. In fact DNA differences are so great between them and their closest relatives that  populations may have separated up to 300,000 years ago, say  scientists. The animals became isolated when  island became totally cut off from the mainland due to rise in sea level. Borneo's elephants are, therefore,  important, separate population.

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