高中反意疑问句1、\x05He had planned to lend you a hand yesterday,______?2、\x05They must have finished their task ahead of time now,______?为什么一句用didn't he,另一句用haven't they 而非don't they

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高中反意疑问句1、\x05He had planned to lend you a hand yesterday,______?2、\x05They must have finished their task ahead of time now,______?为什么一句用didn't he,另一句用haven't they 而非don't they
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高中反意疑问句1、\x05He had planned to lend you a hand yesterday,______?2、\x05They must have finished their task ahead of time now,______?为什么一句用didn't he,另一句用haven't they 而非don't they
高中反意疑问句
1、\x05He had planned to lend you a hand yesterday,______?
2、\x05They must have finished their task ahead of time now,______?
为什么一句用didn't he,另一句用haven't they 而非don't they

高中反意疑问句1、\x05He had planned to lend you a hand yesterday,______?2、\x05They must have finished their task ahead of time now,______?为什么一句用didn't he,另一句用haven't they 而非don't they
第一句话中注意yesterday,强调时间,发生在昨天的事情,故而用didn't he(一般要注意句子结构中表示时间的状语,根据时间判断反意疑问句的使用,但要注意句子的句意结构--是否只是描写事实的平常句,此时,与主句时态无关这是高中学习重点之一)
第二句话,表示推测,是对现在时态的虚拟语气,所以此时不看now,对虚拟语气的助动词HAVE提出反问.