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问题 条件状语从句的时态问题

请问条件句的主从句通常可以用什么样的时态呢？比如这一句话：If you had to explain the most simple of procedures, you might feel frustrated. 这句话是条件句吗？ 为什么用了过去式呢？可以用现在时吗？

问题 定语从句中提前的介词of应该放在从句的哪个位置

...e in other countries’ domestic politics has gone on.请分析一下这个定语从句,这个提前的介词of 应该是在从句的哪个位置？这个of which  这个提前的介词of 应该是在从句的哪个位置?

问题 when为什么要用逗号隔开

...asure of fishing;while the third consists in the pleasure of fishing alone when, facing a pond of clear water, you put aside all your vexations andannoyances and enjoy the complete mental and physical relaxation." 1.第三个小分句里面加粗的when为什么要用逗号隔开? 2.第三个小...

问题 what引导宾语从句时作什么成分

The company has done precisely what it had long promised it would not. 请问what引导宾语从句，但是what作什么成分呢?只是引导词吗?  十分感谢！

问题 would rather后的从句可过去将来时吗

书上说，would rather后的从句要用虚拟语气，且这样的虚拟语气要用过去式表示现在或将来，用过去完成时表示过去。请问：可以用过去将来时表示将来吗？

问题 traffic lights的lights习惯上要用复数吗

...是可能的，比如我见过下面的句子：A traffic light tells us when to cross the road. 交通信号告诉我们何时穿越马路。

问题 状语从句中一般现在时与现在完成时的区别

Remember to send me a photo of us next time you ______ to me.A. are writing   B. will write  C. has written   D. write答案为D。我记得这种情况好像用C也行吧，请高手详细讲解一下。谢谢！

问题 than只能后接动名词短语 being able to...而不能直接接 able to吗

为什么下面这句话中，than后面只能接动名词短语 being able to...，而不能直接接 able to...？in recent years, scientists have begun to show that the advantages of bilingualism are even more fundamental than being able to converse with a wider range of people. 本句很明显...

问题 all the time的用法

One of his favourite pastimes was doing nothing. His idea of an energetic afternoon when the sun was shining was to sit under a tree, with a pretty girl by his side, and all the time in the world to talk of this and that, to count the blades of grass.All the time in the world是做状语还是前面...

问题 when后面用什么时态？

When talking about China-US trade，为什么用ing？为什么没有主语？为什么不是When we talking about China-US trade，

问题 the way引导方式状语从句

请问the way 引导方式状语从句和as有什么不同，是否可以互换呢，另外the way是一个名词，为什么可以充当连词呢

问题 whenever可以引导什么从句?

But each year , the dogs are still sent out into the snow whenever a traveller is in difficulty.请问whenever除了让步,还可以引导哪些从句? 感觉这里看成让步说不通...

问题 时间状语放主句还是从句

When I hear the news tomorrow, I will call you.请问时间状语从句中可以再出现时间状语吗，还是必须写在主句中?写成When I hear the news, I will call you tomorrow. 如果第一个句子对着的话,那么变成现在分词状语Hearing the news tomorrow, I will call you.这...

问题 otherwise 引导的句子用虚拟语气有何规律

otherwise 有时引导虚拟语气，有时不引导虚拟语气，请问这有什么规律？如：We must be back before midnight; otherwise we’ll be locked out. 我们必须在午夜之前赶回去，否则我们就会被锁在门外。（没有虚拟语气）We must be early; otherwise we won...

问题 过去分词作定语和定语从句的相关问题

...the brain. 这几年的captured为什么不是are captured是省略了定语从句关系词吗？还是过去分词作后置定语呢？ 一看到后面有by就很自然想到被动！求老师指点！