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问题 延续性动词的否定形式还是延续性动词吗

...能跟时间段连用，是不是不仅仅限制于完成时和完成进行时态?是不是所有时态，跟时间段连用的话，都要求是延续性动词?  2.A person can't live for more than a few days without water. live是延续性动词，can’t live还是延续性动词...

问题 现在完成时还是过去完成时

I ate some fruit, which I ______ since I was a child, and the vegetables from my garden. A.have enjoyed B.enjoyed C.enjoy D.had enjoyed能不能选择D, 还是只能选择现在完成时?

问题 此空是不是只能填because

语法填空，Dujiangyan Panda Base is the most convenient one _____ it is near to Chengdu City.除了bacuase能不能填as, since, 或者for。为什么？

问题 I was last here语法分析

I heard some changes have been made by the current president since I was last here.最后的was last here怎么解释?

问题 语气理解困惑

...拟语气，还是陈述语气？为什么？  应该怎么理解这里的时态would和时态didn't？如果是虚拟语气，根据上下文语境，正确的应该怎么表达呢？如果是陈述语气，根据上下文语境，正确的应该怎么表达呢？ 2) When you read a letter, wheth...

问题 关于might与could

Tom hasn‘t come to work since last Friday._____he have had an accident？ C. Could   D. Might 答案是C，可是我不懂D项怎么不对。 顺便问一下：would have done 只用于虚拟语气中吗？还是有其他用法，谢谢老师能够回答！

问题 one of后面可以接单数名词吗

下面这个句子中的one of后面的名词为什么没有用复数呢？The period since the revolution has been one of political turmoil. 

问题 同一个句子主动变被动由误变正确

...。书上给出的理由原话是，“一个句子的谓语动词用什么时态，决定于主语而不决定于其他句子成分”。我的想法是，即便是Guangzhou 做主语，虽然Guangzhou这个地方是一直存在的，但“造访”这个动作仍然是由人发出的。既然人...

问题 关于静态动词完成时的问题

静态动词完成时表示持续一段时间一般用for/since那么so far/before/this year/always/recently/today/never/ever表示从过去持续到现在的时间状语也可以用于静态动词完成时吗，能不能各个分析一下并给些例句，谢谢！

问题 单词在句中的成分

Now the nation’s top patent court appears completely ready to scale back on business-method patents, which have been controversial ever since they were first authorized 10 years ago.请问主句的谓语动词是appear还是ready to 呢?

问题 为什么demand作先行词，定语从句也要使用虚拟语气

...C。我也是选C，但我个人认为，这就是一个很正常的过去时态而已，他们之前提出的需求被拒绝，if部分的状语从句用一般现在时态。但是为什么，解释说，这里的C是虚拟语气？是should put forward的省略？我只知道名词性从句可以...

问题 现在分词所做的成分

The figures have generally been on an upward trend since the tracker was launched in 2000,  peaking at nearly $46 billion in 2016.请问这里的peaking at nearly $46 billion in 2016作什么成分，是作前面整个句子的非限制性定语吗？

问题 her award表达习惯问题

She's been getting a bit above herself since winning her award.他获奖以来，渐渐有点骄傲了。请问老师，这里的her award 和 the award 或者an award有区别吗？为什么这里要用物主代词呢？一般中文好像不会这么说,英文好像也不常见吧

问题 high/expensive区别

Since the print book is as ____ as thirty dollars, I suggest that you buy e-book. It will save you a lot of money.A. high       B.expensive  求助，这个题为什么选A呢 high主语不是价格嘛 是因为翻译为“这本书高达三十美元嘛”.

问题 planning在句子中的成分

请问各位老师，以下这个句子：The evidence from Russia and Ukraine pointed towards President Vladimir Putin planning what could be the biggest war in Europe since 1945.此处President Vladimir Putin planning的planning是做什么成分呢？