____ with the size of the whole earth,the biggest ocean does not seem big at all.

问题描述:

____ 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
为啥选D?

海洋和地球相比,海洋不会主动去比,所以B和C都排除了;
句子里已经有了seem这个动词作谓语,不能再有第二个动词谓语,所以排除A;
这样一来,只剩下D.