15. Jane _____ no strong emotion when they told her the news.

displayed frustrated signed observed

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用户解答： displayed 标准答案： displayed

16. ___ with the size of the whole earth , the biggest ocean does not seem big at all

Compare When comparing Comparing When compared

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用户解答： When compared 标准答案： When compared

17. Do you mind my smoking here? _____.

No, thanks Yes, I do

Yes. I'd rather not Good idea

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