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问题 非延续动词的否定句式加时间段用in还是for

非延续动词的否定句式加时间段用in还是for？如：I haven't seen him for/in three day.We haven't spoken for/in 2 years.这里in和for是都可以，还是只能是in？有区别吗？

问题 句中的what是疑问代词what 还是 引导名词性从句的what ?

...;t heard a clear sense about what are the issues that this president wants to tackle.1）麻烦老师分析一下句子的成分？2）句中的what是疑问代词what 还是 引导名词性从句的what ?3）另外一个经常搞不懂的容易混淆的问题是，如何判断what是疑问代词还...

问题 all most与almost是同义还是不同义

It was all most interesting. 请问句中的 all most 是什么意思？与 almost 有区别吗？

问题 as引导省略了主语的状语从句？

...语,as仅仅为连词在从句中并不做成份：everything happened as (it) had been expected.

问题 名词一定要加限定词吗

one of children中名词前用加限定词吗？ It's very good value. 中的value也没加限定词。He's elected chairman of the students' union. 也没加限定词。所以名词前面一定要加限定词吗？什么时候可以不加呢？

问题 tomorrow 和 here 前为什么加上介词?

What's the weather forecast for tomorrow?It's freezing in here.请问为什么这些表示时间和地点的副词,前面还要再加上介词呢? 如果我不用介词,直接用tomorrow 和 here 会有什么不同吗?

问题 请教下老师这题应该怎么去分析？

It was___we had hoped. A.more a success thanB.a success more thanC.as much of a success asD.a success as much as我选的是B，查到的答案有A和C两种。

问题 see表见证的时态问题

...ealizing unprecedented economic growth, as well as making breakthroughs in its relations and exchanges with the rest of the world.现在完成时态have seen可以改为一般过去式saw吗?2)  Next year sees the centenary of Mahler's death. 句中的sees可以改为will see吗？

问题 will have been对过去情况作肯定推测

对过去情况作肯定推测一般是用must have been，但下面的句子中，是用will have been对过去情况作肯定推测：That will have been Roland. He said he’d be back at 7. 准是罗兰。他说他7点钟回来。请问它与用must have been对过去情况作肯定推测有何...

问题 关于冠词的问题

Who says only adults can influence the world? Teenagers can too. A good example is Canadian singer and songwriter Shawn Mendes.我认为红色字体前应该有冠词the.请专家老师指导，十分感谢。

问题 which指代问题

This is a complex process that requires molecular feedback between neural stem cells and microglial cells, which release and express a multitude of molecules.which指代的是process还是microglial cells？

问题 neither的用法问题

在Neither of us is right. 句子中，neither做主语，我想问一下neither可以做同位语吗？如We neither are right.貌似好像不行，但什么原因呢？请老师指导，万分感谢！

问题 yet是什么词性

“Mass-produced clothing, like fast food, fills a hunger and need, yet is non-durable and wasteful,” Cline argues.请问这里的yet是什么词性？

问题 that的用法疑问

想要问一下 The mains is a combination of psychological theory and date that helps games-makers masimise that playtime 这个句子中第二个that有什么作用？

问题 好题分享（91）：选择题

The decision made by the Japanese government is beyond ________ （problem / problematic).