5. The book            belongs to you. Don，t get it wrong. (cover)

封面是藍(lán)色的那本書是你的，別搞錯(cuò)了。

5. whose cover is blue考杳定語從句的用法。whose cover = the cover of which

題目來源：高考丟分題英語 > Unit 4 Sharing

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For well over a thousand years，smallpox was a disease that everyone feared. The disease killed

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