问题 这句话的时态是什么？

Lately, a growing number of companies are leveraging big data

问题 英语里不定式做定语有时态变化吗

英语里不定式做定语有时态变化吗（进行式、完成式）此外不定式做定语表示的都是将来的动作？那 He was the first guest to arrive.(他是第一个到达的客人)该怎么理解呢?

问题 一般现在时还是现在完成时态

That means all rural residents living below the current poverty line should be lifted out of poverty by 2020. It will be the first time in China's history that extreme poverty is eliminated.学生认为that extreme poverty is eliminated应该用现在完成时态，对吗？

问题 用完成时态改写句子

The guest invited to my house yesterday borrowed my umbrella when he left. 将这个句子变为完成时，请问这道题怎么变？

问题 主语从句中时态的问题

主语从句中 时态问题 例如一、It seems that he was right. 1/这对吗？主句是一般时，主语从句可以是一般过去时吗？2/  that he was right. 可否看成是表语从句？二、 It has turned out that he was right. 对        It has...

问题 有关marry的时态问题

当我们询问别人的婚否时，常用一般现在时Are you married?而不用现在完成时，这是为什么？盼专家老师解惑。

问题 remain的时态

Because its leaves remain green long after being picked, rosemary became associated with the idea of remembrance.请教老师.  为什么句子用的是remain而不是remained呢

话题 from now on时态的深入研究

话题 语法填空中mean的时态及用法问题

话题 as if后面的虚拟语气时态问题

问题 时态问题

请教一下最后一道题，我们的练习册上是要求写出答案的，答案给的是when do you have time？或者是 When will you go？如果想填when will you have time？可不可以呢？它和when do you have time什么区别呢？

问题 being witty在下句中是现在进行时态还是分词表语

She is being witty.这是现在进行时态还是分词表语？谢谢老师的回答。

问题 涉及时态和被动语态的考题

The old building is where the clerks live,and the blue one is where the spare parts ______.A. are producing  B. being produced  C. produced  D. are produced老师，您看一下这一题的时态，还有这一题为什么要用被动语态啊？请老师详细讲解这道题！ 

问题 主句过去时,从句时态问题.

遇到两个例句,对它们从句的时态不能理解...1.I heard they are going to raise money for the school buildings.  (既然是过去听说,为什么从句不是过去将来时呢?)2.At last Jim handed over the money he stole in the supermarket. (主句是过去时,那他偷钱的动作...

问题 这里的完成时能否替代为其他时态

老师好，这里的完成时能否替代为其他时态，比如过去时，原文这样用有什么好处呢-The largest change in recent generations has been to our diet, although other critical elements of health — water, exercise, sun exposure, and sleep — also undergoing major shifts.&nbs...