when and where to go for the on-slary holiday___yeta: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 the on-slary holiday___yet
a:are not decided b:have not been decided c:is not being decided d:has not been decided
答
选D哈。
yet:用完成时的标志
when and where to ...放在一起用单数形式的
答
选D啊。结尾处很明显有个yet
答
D.
两个疑问词作主语时,谓语动词用单数,而且是现在完成时.