The New Zealand Storm Petrel was a bird long thought (i)______, but in 2003 several birds were spotted for the first time in 150

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问题 The New Zealand Storm Petrel was a bird long thought (i)______, but in 2003 several birds were spotted for the first time in 150 years, apparently having(ii)______themselves on the predator-free Hauraki Islands during the(iii)______

选项

答案A,F,G

解析 The best answer is A, F, and G. The conjunction "but" indicates that Blank(i)should be filled with something opposite to the idea of living birds, like "extinct." The birds were unseen for 150 years, which indicates that they had hidden themselves. Therefore, Blank(ii)is "secreted," which here means "hidden." Finally, Blank(iii)is a synonym for the 150-year gap, i.e. "interim."
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