一道英语题jack _________yet ,otherwise he would telephoned you.
问题描述：
一道英语题jack _________yet ,otherwise he would telephoned you.
A.mustn't have arrived
B.shouldn't have arrived
C.can't have arrived
D.needn't have arrived 为什么选C.A为什么不可以?
答
对过去事情的否定判断,翻译为,不可能...他不可能已经到达了,否则他会给你打电话的
a的意思 .must have arrived 表肯定判断,不用mustn't这个形式