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问题 短语动词为何没有 keep back someone

...k这个词条下只能把someone 放中间，不知道这是和何道理，That's the reason which keeps the man back为何不可以说keep back the man? 此词条意思阻止某人成功。下面的截图出自collins phrasel verbs dictionary：

问题 是宾语还是状语？

Condensation are inching their way closer and closer to the surface of the wood.我的理解：the surface of the wood作复合谓语are inching thier way to的宾语。closer and closer作状语修饰谓语动词。

问题 will 有无是否有别

Simply raise your hand, and a taxi WILL appear in no time.Simply raise your hand, and a taxi  appears in no time.二者差一个 will，有何区别？谢谢!!

问题 句子成分分析

The idea is to  experiment if potatoes and silk worms can flourish on the Moon  in simulated minibiosphere. 老师好，请问on the Moon  是地点状语还是potatoes and silk worms 的定语？

问题 逗号的用法

These teens, with their "unattractive"and "fat"appearance and laughably bad singing skills, induce ferocious criticism, but at the same time, thrive on it.teens和with中间的逗号是否可以去掉？如果可以去掉，那么去掉和不去掉有什么区别？这里的逗号作用是什么？

问题 句中的somewhere是何意

But somewhere in my wicked miserable past, there have been a moment of truth.但是，在那调皮痛苦的昔日，一定有片刻的诚实。句中的 somewhere 是何意？

问题 will 可以与 yesterday 连用吗

看到这样一个句子：He will have left yesterday.这个句子对吗？will 可以与 yesterday 连用吗？

问题 dinner什么时候加冠词

1. He cooked us a huge dinner.2.Make dinner / prepare the dinner3.When do you have dinner?请老师总结一下dinner什么时候加冠词？

问题 experience是持续性动词吗

例如:The company have experienced a remarkable growth in recent days.这句话正确吗？

问题 好题分享(29)：选择填空题

You've never been to Changsha ______ (either / too), have you?请问应该选哪个，还是二者皆可？

问题 关于虚拟语气倒装

George would certainly have attended the proceedings，———A had he not had a flat tireB had the tire no flattened itselfC if the flat tire hadn't happened可以说说为什么不选C吗？

问题 句子成分

1. All human being are born ______.   A.equally   B. equal空格处做啥成分选啥词性？2. The home improvements have taken what little there is of my spare time.what从句的成分如何划分？there is起什么作用？

问题 often可用于现在完成时吗

Women have often been used as symbols of virtue. 女性经常被用来作为美德的象征。

问题 whatever引导状语从句相当于no matter what吗

...句中的 whatever 可用 no matter what 来代替吗？Whatever you do, I’ll always love you. 不管你干什么，我永远爱你。Keep calm, whatever happens. 一定要保持镇静。不管发生什么事。Spend the money on whatever you like. 你喜欢什么就用这钱去买吧。Whatever h...

问题 sort,kind,type 的区别

...用 these / those kind / sort of…，而应该用名词(复数)+of this / that kind / sort。例如：Pencil-boxes of this kind / sort sell well. 这种铅笔盒销路很好。Questions of that kind / sort are very difficult. 那类问题非常难。是正确的吗？