When and where to go for on-salary holiday ______yet.a、are not decided b、have not been decided c、is not being decided d、has not been decided

问题描述:

When and where to go for on-salary holiday ______yet.
a、are not decided
b、have not been decided
c、is not being decided
d、has not been decided

When and where to go for on-salary holiday ______yet.
选D
因为有yet所以用完成时
又因为是一个主语从句作主语
所以谓语动词用单数has