Research shows people with pets in the home visit the doctor less often and experience less sleeping difficulties that ____ without a pet friend.
A. ones B. those C. the ones D.that
該題選B是能理解的。但是，請問為什么the ones不行呢？those與the ones有時可以換用不是嗎？再者，指人時不是更可以用the ones了嗎？
我想選the ones也是可以的，比如《朗文當代英語詞典》的dress詞條在解釋dress down這一短語動詞時就是這樣說的：to wear clothes that are more informal than the ones you would usually wear.
主題：：
：2009/11/26 20:37:06
回復：：
明白了，謝謝指點
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