英语反义疑问句选择题1.The workers can't have finished their work yet,____?a_英语解答

英语反义疑问句选择题
1.The workers can't have finished their work yet,____?
a.have they b.do they C.are they D.can they
百度上搜索到一个：陈述部分为can't have done,依情况用did,has,have.
神马叫“依情况”= =汗
为什么选择A呢,D错在哪里~这边的have是使役动词吗?

人气：160 ℃　时间：2020-05-23 15:28:01

解答

Ahave 是助动词can't have done...用以表示对已经发生的事作以否定推测但前一句表推测的 may, must , can 时, 反意问句中不能用这些情态动词, 而应和情态动词后面的动词形式保持对应关系【希望帮助到你,若有疑问,...