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标题: [求助]GWD-2-34, A or C? Ans: A [打印本页]

作者: joywu1221 时间: 2008-10-10 18:39
标题: [求助]GWD-2-34, A or C? Ans: A

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

A seems not correct, bcoz of "having"...

C seems better, but C does not have "can" in the end.

Pls advice which is better? A or C?

作者: joywu1221 时间: 2008-10-10 18:49

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