搜搜做题作业网请分析这句英文语法布莱里奥从1905年起便开始研制飞机Bleriot had been making planes si
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请分析这句英文语法
布莱里奥从1905年起便开始研制飞机
Bleriot had been making planes since 1905
为什么不是Bleriot had made planes since 1905
布莱里奥从1905年起便开始研制飞机
Bleriot had been making planes since 1905
为什么不是Bleriot had made planes since 1905
第一个句子是过去完成进行时,表示在过去的一段时间里一直在做某事,强调动作的持续性,而第二句是过去完成时,则没有这个用法,所以应该用第一个句子.
请分析这句英文语法布莱里奥从1905年起便开始研制飞机Bleriot had been making planes si
几句英语句子对比!1 He had been making planes since 1905 and this was
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请帮忙分析下面这句英文的语法,
请帮忙分析这句英文的语法结构,
请答题者先从语法正确与否开始分析对错,然后才是句意是否搭配!
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分析这句英文的语法结构!
求分析这句英文的语法.
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请分析此句英文的语法结构