神马作文网He must have finished his homework,he A,mustn't B didn't Cha
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/10 23:07:27
He must have finished his homework,he A,mustn't B didn't Chasn't 选哪个,
答案应该是C：这道题考的反义疑问句.A mustn't 是“不准”的意思,可直接排除的哈； B 如果原句有一个表过去的时间状语,那么反义疑问句部分就该与时间状语保持一致,比如说He must have finished his homework yesterday,此时就该用didn't he?而这题没有,B答案就可去掉了； 而答案 C是正确的,是因为原句不存在时间状语,则根据原句的谓语动词做相应的变化,原句是完成时,且是对过去的肯定推测,则直接把助动词have变为haven't,又因为主谓一致的关系,把haven't 变为hasn't······
He must have finished his homework,he A,mustn't B didn't Cha
he must have finished his homework last night,didn't he?为什么是
he must have finished his project last week,——?A.hasn't he B
He must have done his homework last night,didn't he? 这里为什么用d
Our teacher must be in his office,A mustn't he B can't he C
He didn't go to sleep ______he finished his homework.C. a
He can't have finished his homework,__he
He didn't go to bed until he finished his homework.从句中的he可以省
He must have been there yesterday,___he?A.must B.mustn't C.w
"He didn't go to bed until he finished his homework "的同义句
句型转换 急He didn't go home until he finished his homework.(改为同义
@转换:He didn't go to bed until he finished his homework last