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问题 must be与must have been的区别

有句子如下:I’m early—my watch must be fast. 我来早了——准是我的表快了。请问句子中的 am 可以换成 was 吗?还有,must be 可以换成 must have been 吗?因为“我来早了”发生在过去(注意其中的“了”字),而“表快了”也是过去...

问题 省略句的时态用he did还是he had

The man denies that he broke the window, but I’m sure he ______. A. did    B. had答案是 did。但为什么不用 had 呢?

问题 一道复结构的选择题(主动关系与被动关系)

---Come on,please give me some ideas about the project.---Sorry.With so much work ____ my mind,I almost break down.A.filledB.filling C.to fillD.being filled答案为B怎么理解work 和 filling 之间是主动关系呢?work与filling 不是被动关系么?谢谢!

问题 谓语的否定形式(do not中的not是否定什么的)

谓语的否定形式是在助动词或情态动词后加上not,我想请问老师not是否定助动词和情态动词的,还是否定后面非限定动词的。谢谢。例如,I do not know.这个not是否定know还是否定do.

问题 To lie on the beach feels comfortable的句型转换

各位大神麻烦看看 To lie on the beach feels comfortable 可以换成 I feel comfortable to lie on the beach?

问题 can not help but do的意思

Wasn't I tempting fate: how could these hard-nosed Nazi detectives help but smell out the diaries beneath my broadcasts?can not help but do意思是不可避免、情不自禁的做.....但是这里变成特殊疑问句,没有了can not 还是那个意思吗?翻译句子有点乱了!

问题 这个句子中的"yet"应该怎么理解?

I have yet to be convinced.这个句子是《新牛津英语词典》中“yet”词条的例句,英汉双解版本中的中文翻译是:到现在为止还没人能说服我呢。但是原句中have 未使用否定,为什么意思包含否定?yet在句中默认包含一个否定的含义吗...

问题 进行时用法分析:You are doing very well.

I didn't do my homework well, don't sasy like taht. You are doing very well.这里面的 are doing very well 进行时的用法是什么?谢谢!

问题 持续性终结动词在实际使用中的疑惑

...结动词在实际使用中的疑惑,希望曹老师帮我答疑解惑!I have just arrived by train.这里的arrive 是持续性终结动词,这里arrive的到达是表示乘火车已经到达了车站,与目的地还有距离需要乘车之类的,而不是表示乘火车到达了目的地...

问题 find后面可以接不带to的动词不定式做宾补吗

I find someone do something.find后面可以接不带to的动词不定式做宾补吗?

问题 句子结构分析,请详细一点!谢谢!

there is no question,however,that three years into this effort we stand united,73 members from around the global in common purpose the destruction of ISIS and the protection of our own citizens and homelands through our cooperation.

问题 求教一句话的意思

If ever the earth has noticed a system of administration conducted with a single and keen eye to the general interest and happiness of those committed to,it must be the system protected by truth,to which our lives have been devoted to.求教前半句的意思,分析一下句子结构。

问题 这句话的句子成分分析

She listened: the back door closed she could hear the fastener of the kitchen window’s click, and the restless pad of his feet going back to try the front door. 求大神分析下这句话以及翻译,看了有点懵

问题 关于不定冠词修饰可数名词

Shaq found an opening to sell a cheap sneaker of his own.Still, O'Neal believed he could sell a pricier sneaker by himself--but fouled out.想问一下这两句话中的“a sneaker”是指一双鞋么?难道不应该是说“a pair of sneakers”么?

问题 include 的用法一例

include在此句中表示什么意思,表示"包括"?请老师给予讲解:As you can see, there are many ways to include marketing activities in your busy life. So instead of wishing you had more time for marketing, why not make marketing a part of the time you are already spending?