______from space, the earth, with water _____seventy percent of its surface look
题型：不详难度：来源：
______from space, the earth, with water _____seventy percent of its surface looks like a blue ball.| A．Seen; covered | B．Seen; covering | C．Seeing; covered | D．Seeing; covering |
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答案
| B |
解析
这题考查非谓语动词的用法：第一空填seen，是过去分词做状语，因为the earth和see是被动关系，第二空填covering是with复合结构，因为water和cover 是主动关系。选B。 |
举一反三
The teacher was absorbed in writing something, only _____ now and then to refer to a book or another. | A．to stop | B．stopped | C．stopping | D． having stopped |
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I don’t think it easy, even if we work hard, _____ the South Korea and the North Korea to sit down to talk at present.| A．persuaded | B．to persuade | C．persuade | D．persuading |
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Could I have a cigarette? I seem_________.| A．to run out | B．to have run out | | C．to have run out of | D．to have been run out |
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When he woke, he found himself ______ on a chair, with his hands ______ back.| A．seated,tying | B．sitting; tying | | C．sat; tied | D．seated; tied |
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The American tourist hurried to the museum, only ________ that the train had pulled out of the station．| A．telling | B．to tell | C．to be told | D．having been told |
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