请在 下方输入 要搜索的题目:

The professor could hardly find sufficient grounds _______ his arguments in favor of the new theory.


A、to be based on ;
B、 to base on ;
C、which to base on ;
D、on which to base

发布时间:2025-06-03 16:49:14
推荐参考答案 ( 由 快搜搜题库 官方老师解答 )
联系客服
答案:on which to base
专业技术学习
专业技术学习
搜搜题库系统