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问题 knock是短暂性动词吗

knock可以延续吗？while后面可以加knock吗？While I was knocking at the door,Bob was sleeping.这句话对吗？

问题 go into 的意思

Alas, growing the beans that go into it is neither particularly profitable nor pleasurable.请教一下亲爱的老师，that go into it 是什么意思，做什么成分呢?

问题 as的词性和含义

Routine jobs have declined as a share of the workforce. 常规工作在劳动力中所占的比例下降。请问亲爱的老师，这里的as是什么词性？表示什么意思呢？

问题 as much as

The computer has 147,456 processors and 144 terabytes of main memory-100,000 times as much as your computer has. 为什么这里填much而不是many?

问题 be off 的含义是指将来的动作还是现在的状态

...条下，有这样的例句： She was off again, last year she had been to Kenya. This year it was Goa. 此句我就不知道是用一般过去时表过去将来，还是表状态。 对于 I am off 或 Tom is off  的含义，不知道是我或汤姆将要走（动身）呢, 还是指...

问题 always assuming是什么意思？

‍He can go with you—always assuming he can spare the time. 句中的always assuming是什么意思？什么用法？请分析一下，谢谢！‍

问题 with复合结构过去分词

When lisa stood before the audience, she felt very uneasy with all eyes focused on her.为什么要用过去分词，eyes与focused不是被动关系吧

问题 going 词性的分析

The Night Manager is about arms dealing and there are far too many arms going into South Sudan. 这里的going 为什么是现在分词形式呢？ 武器可以自己主动进入吗？ 没有看懂，求指点？

问题 这道题一点思路都没有

Do you know how the war _ .A.winsB.wonC.was wonD.had been won

问题 虚拟语气主句

Had he worked harder, he  (  ) the exams.A. must have got throughB. would have got throughC. would get throughD. could get through答案B.但我个人认为，从句意和语法来说，任何一个选择都可以。不知道我的理解对吗？麻烦老师分析一下，谢谢！

问题 above位于句末时的词性

For the reasons mentioned above.此句中的above是副词词性吗？

问题 长难句分析

The company has done precisely what it had long promised it would not.既然是what引导的宾语从句，那么what在句中就一定要做成分，可是promised的宾语不是it would not吗？好像什么成分都不缺呀？求高手指点。

问题 怎么理解if detect

But if detected he would be dead shortly afterward, death being the just and legal penalty of his crime.句子是虚拟语气吗？怎么理解if detect?

问题 这里是新闻体的用法吗

The second is: reduce widespread inequalities.老师您好，请问这个reduce又是新闻体吗？正常应该是非谓语形式才对。

问题 副词用逗号隔开

1.The house-price boom is not just a result of policy, however.2. Structural forces are at work, too.老师，请问为什么这两个句子后的副词，however和too都要与句子用逗号隔开呢。有什么意义呢？