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问题 区分have been 和have gone

A： Roberto and Sophie are on hoilday ，are‘t they？Where have they gone ？B：To Florida ，again . A ：How many times ____ they ____there? B: This is their third visit.第二组填空答案填have been 我不明白为什么，have been 的意思不是去了已经回来了么。

问题 let things happen是否是固定搭配

I need to be patient and let things happen. 此句中let things happen是否是固定搭配，在字典里没找到。请请专家指教，谢谢！

问题 appear to在句中是什么意思？句子中to be可以去掉，而句子意思保持不变吗？

Nor, if regularity and conformity to a standard pattern are as desirable to the scientist as the writing of his papers would appear to reflect, is management to be blamed for discriminating against the “odd balls” among researchers in favor of more conventional thinkers who “work well with the...

问题 need 没有非谓语形式吗

在短文改错中有个错误whenever后面直接加了need，并且主从句主语一致，我改为了needing。但正确答案是need前面加了i。可以讲一下吗，谢谢老师。顺便询问一下关于写作文的方法。有模板之类的吗。谢谢老师

问题 as... as...的用法: as后接系动词is

Such statements are true to an extent. On one hand, it is true that the volatility of any crop is as sensitive to the weather as is the quality of the air we breathe. Thus, the agricultural industry is only successful in climates where growing conditions are relatively at optimum levels. On the...

问题 介词短语能做状语修饰名词吗

However, there are fears BMI on its own is not a "reliable measure" of an individual's health and may be resulting in both under- and over-diagnosis of obesity, with "negative consequences" for those affected and wider society.这句话的for those affected.....是做状语修饰前面的consequence...

问题 句子理解问题s

Expect the Democrats  to be toughter on Russia,and depending on what the Muller investigation concludes in terms of any 2016 election collusion,that would have an impact as well.不定式做Democrts的后置定语，翻译为：预计民主党会对俄罗斯更强硬 ，此处这样理解有问...

问题 改错的问题

...esponsible for maintaining customer relationships, managers recognized the need for expanding evaluative criteria beyond just the achievement of sales goal.这是一道改错问题，with改成as，请问老师这里为什么不能理解成with的复合结构，with+名词+adj.？

问题 句子成分问题

Your mother has been caring for you even since before you were born. She wants you to go and chase your dreams. That is all any mother ever wants. But she is scared that you will make a mistake, do something you'll regret. She won't be able to protect you.1.这里since before you were born是个什...

问题 介词like后面可接不定式吗

有这样一个句子，like应该是个介词（因为前面有系动词be），但它的后面怎么接了不定式而没有接动名词呢？难道介词like后面可接不定式? I needed to satisfy my curiosity about what it was like to make records. 谢谢老师解答！

文章 老问题：in the playground or on the playground

...into the playground.He staggered around the playground, screaming in agony.There was a sandpit, a seesaw and a swing in the playground.We shot up heroin in the playground.The children were running about in the playground.She pushed me over in the playground.The little children rode their tricycles a...

问题 than any other后只能接单数名词吗

老师说，than any other 后只能接单数名词；网上也说，than any other 后只能接单数名词。但我总觉得，这不合常理，为什么要用单数名词呢？有比较权威的观点吗？另外，如果不是 than any other，而只是 any other 呢？它后也只能接单数...

问题 here be句型

here are the eight moments to watch for when the Rock Hall induction ceremony premieres on HBO on April 29.请对这句话的句子成分进行一下分析，请还原一下正常语序。还原正常语序后，这个here还加进句子中吗？ 

问题 不定式可以表伴随吗

A great number of people are born to be allergic to peanuts.例句中 出生 和 过敏 同时存在，to be allergic to peanuts 是不是就是伴随状语？

问题 can be与may be都可以表示“推测”吗？如何区别？

...h the way to the post office is   我觉得两句都对，您说呢？5. There was ________more than one person who got full marks in the exam. 横线上可以填probably、perhaps或maybe 吗？6. Understand the saying "Practice makes perfect."请问这句话中的 "Practice" 大写P是否有错...