问题描述：
There are various kinds of metals, each ___D___ its own properties (特性). A. has B. had C. to have
There are various kinds of metals, each ___D___ its own properties (特性).
A. has B. had C. to have D. having
为什么选D哦（我排除了A,B,然后选了C）
谢谢
There are various kinds of metals, each ___D___ its own properties (特性).
A. has B. had C. to have D. having
为什么选D哦（我排除了A,B,然后选了C）
谢谢
问题解答：
我来补答展开全文阅读