Land animals are believed from sea animals.
A. to have developed
B. to have been developed
C. having developed
D. having been developed
Land animals are believed from sea animals.A. to have developedB. to have been developedC
答案:2 悬赏:80 手机版
解决时间 2021-04-11 21:13
- 提问者网友：萌卜娃娃
- 2021-04-11 18:26
最佳答案
- 五星知识达人网友：你可爱的野爹
- 2021-04-11 19:49
(答案→)A. to have developedB. to have been developedC. having developedD. having been developed解析：考查非谓语动词。句意：陆地动物被认为是由海洋动物进化而来的。根据句意可知事情已经发生，故用不定式的完成时，选A。
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- 1楼网友：洒脱疯子
- 2021-04-11 20:01
谢谢了
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