He has three brothers, ________ is a doctor.

A. all of them　 　　　　　　　 B. all of whom

C. none of whom　　　　　　　　 D. both of them

 

C

兩句中間為逗號且無連詞，說明選項所在句子是個非限制性定語從句，可排除A、D。在B、C中，根據(jù)主謂一致原則選C。

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“Indeed”George Washington wrote in his diary in 1785, “some kind of fly,or bug,had begun to eat the leaves before I left home.” But the father of America was not the father of bug.When Washington wrote that, Englishmen had been referring to insects as bugs for more than a century, and Americans had already created lightning-bug(螢火蟲). But the Enlish were soon to stop using the bugs in their language, leaving it to be the Americans to call a bug a bug in the nineteenth and twentieth centuries.
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“Indeed”George Washington wrote in his diary in 1785, “some kind of fly,or bug,had begun to eat the leaves before I left home.” But the father of America was not the father of bug.When Washington wrote that, Englishmen had been referring to insects as bugs for more than a century, and Americans had already created lightning-bug(螢火蟲). But the Enlish were soon to stop using the bugs in their language, leaving it to be the Americans to call a bug a bug in the nineteenth and twentieth centuries.

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Or the bug could be a small machine or object, for example, a bug-shaped car. The bug could also be a burlar alarm, from which comes the expression to bug, that is, “to install(安裝) an alarm”. Now it means a small piece of equipment that people use for listening secretly to others’ conversations.Since the 1840s,to bug has long meant “to cheat”,and since the 1994s it has been annoying.

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A．the misunderstanding of thr word bug

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    The passage is mainly concerned with______.

    1. A.
      the misunderstanding of thr word bug
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