_________ in Current Biology, the finding suggests that female birds seek mates
题型：不详难度：来源：
_________ in Current Biology, the finding suggests that female birds seek mates with superior singing skills.| A．To publish | B．Published | | C．Having published | D．To be published |
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答案
| B |
解析
| 本题考查非谓语动词。根据句意据已经出版的《当前生物学》，可知此书是被出版，故用过去分词，选B。 |
举一反三
The children went home from the grammar school, their lessons ______ for the day.| A．finishing | B．finished | C．had finished | D．had been finished |
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________ in the cage for half a day, the bird became hungry.| A．Being kept | B．Having kept | C．Having been kept | D．Have been kept |
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_______ good and sweet, this kind of apple was soon sold out in the market.| A．Tasted | B．Tasting | C．Having been tasted | D．Being tasted |
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_______ of the heavy burden of homework, the children rushed out of the classroom and enjoyed themselves.| A．To be free | B．Freeing | C．To free | D．Freed |
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They covered the body of the little hero with a flag, leaving his face_________.| A．to expose | B．exposing | C．exposed | D．expose |
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