↑ 收起筛选 ↑
试题详情

Many developed countries have agreed to help the less developed ones but it remains ________ whether they will take action or not.

A. to see              B. to be seen           C. seeing       D. seen

高一英语单项填空中等难度题

少年,再来一题如何?
试题答案
试题解析
相关试题