TherearemoreandmorebirdsflyingtoYanchengforwintereveryyear,______?A.ar

发布时间：2020-08-06 18:30:32

There are more and more birds flying to Yancheng for winter every year, ______?A.are thereB.aren't thereC.are theyD.aren't they

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B解析There be句型的反意疑问句，要求和句首保持一致，前肯后否。
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