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标题: [求助] GWD 一题求解 [打印本页]

作者: benben_zq 时间: 2008-9-11 23:17
标题: [求助] GWD 一题求解

Q34:

NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether, presuming such life forms having left fossil traces to begin with, those traces can still exist in some moist recesses of the cold and arid planet.

and whether, presuming such life forms having left fossil traces to begin with, those traces can
and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces
and whether, presuming such life forms left fossil traces to begin with, those traces
and, presuming such life forms did leave some fossil traces to begin with, if they can
and, presuming such life forms to have left fossil traces to begin with, if they

答案选A，我选C

谁人能帮我解释下为什么啊？苦恼

作者: marchandone 时间: 2008-9-12 01:49
原句中出现了语气词can,一般改了以后也要出现can的，c没有呀

作者: appledrop 时间: 2008-9-12 03:45

presume ... doing ...

or presume that....

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