问题描述：
[英语试题]请指教这一题为何选D而不选C
28． with the size of the whole earth ,the biggest ocean does not seem big at all .
A．Compare B．When comparing
C．Comparing D．When compared
28． _____with the size of the whole earth ,the biggest ocean does not seem big at all .
A．Compare B．When comparing
C．Comparing D．When compared
=========================
不好意思，少了空。
28． with the size of the whole earth ,the biggest ocean does not seem big at all .
A．Compare B．When comparing
C．Comparing D．When compared
28． _____with the size of the whole earth ,the biggest ocean does not seem big at all .
A．Compare B．When comparing
C．Comparing D．When compared
=========================
不好意思，少了空。
问题解答：
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