When and where to have a picnic yetA are not decidedB has not dec_英语解答

When and where to have a picnic yet
A are not decided
B has not decided
C have not been decided
D is not decided
yet不是完成时的标志么那为什么不用完成时呢
d

人气：225 ℃　时间：2020-04-09 02:11:50

解答

知道了
when and where to have a picnic 这里是指一件事,所以是单数,而yet只是起一个强调“没有”的作用