Howand when to leave for Yunnan()yet　A are not decided Bhave not been decided Cis not being decide

分类: 作业答案 • 2023-01-21 12:09:51

问题描述：

Howand when to leave for Yunnan()yet　A are not decided Bhave not been decided Cis not being decide
D has not been decided

答

D has not been decided
不定式作主语,谓动用单三形式,
再根据yet是现完的标志词可知,用现在完成时被动语态,故选D.
句意:什么时候以及怎样去云南,还没有决定下来.