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问题 现在完成时与过去完成时时间状语辨析

Besides, they watched a video about the achievements we had made in the past few centuries.此处为什么不用have而用had，in the past few centuries 不是一般现在时的标志吗？

问题 这句话中冒号的作用是什么

请问这句话中冒号的作用是什么？as called for in plans是非限制性定语从句吗？They have little choice: such pressures will only grow as Hainan transforms into a vast free-trade port, as called for in plans unveiled in 2020.

问题 这种字母上面带点的是什么意思

这种字母上面带点的是什么意思？在手写英语的时候也需要把这两个点写出来吗？ 比如：résumé /ˈrezjuːmeɪ/ a brief résumé of events so far 到目前为止事件的概述

问题 请问这句话有问题吗

Managing your team's emotional state and mood is a critical element of leadership,and emojis can help leaders express and role model emotional cues suitable for certain situations.role 只有名词词性，role model，也是名词短语（行为榜样），所以，role 前面的 and 是否多余...

问题 gather together/round/around？

下面三个句子空格的位置是不是可以填写：together/round/around？The players gathered （） to hear the coach's game plan.队员围拢在一起听教练的比赛战术。Can you all gather ( )? I have got something to tell you.During the festival,family members often gather ( ) to...

问题 although...yet 以及 though...yet 用法分析

Although I now work more hours than I used to, yet I do receive a larger salary.请问老师：although和副词yet连用，那这个yet表达什么意思呢？比如上面例句中yet是什么意思？

问题 为什么 NMET, TOEFL 用 test 不用 exam

NMET=National Matriculation English Test（高考）TOEFL=Test of English as a Foreign Language（托福）为什么这些考试用 test 不用 exam 呢？

问题 这句话中的or怎么理解？

About $13.2 billion of the estimated $68 billion has been raised through state and federal funds, plus a pledge of cap-and-trade proceeds, or funds paid by companies to offset carbon emissions.疑问：感觉这里用 and 才说得通啊!

问题 argument有没有变元的意思？

Equivalent to x**y (with two arguments) or x**y % z (with three arguments)Some types, such as ints, are able to use a more efficient algorithm wheninvoked using the three argument form.来源;计算机文档

问题 请教语法问题(涉及句子成分的分析)

However, when drought conditions returned, that gamble left them with a population double what the floodplain could support, and Mimbres society collapsed sddenly under the stress.这句话中 what the floodplain could support 是什么从句？under the stress 是什么状语？方式状语吗？

问题 这是插入语还是特殊的宾语从句呢？

这是插入语还是特殊的宾语从句呢？what do you think (  ) if we keep reading this?A.can we benefitB. we can benefit答案是B，请问do you think 是主句么？怎么放在后面了 ，这种情况书面语常见么？谢谢老师。

问题 yet to do sth 中的yet是什么用法

A date for the meeting has yet to be determined. 这里的yet是什么意思？什么用法？

问题 however和though用于句末时的区别

The same cannot be said of all our employees, ______.A. however   B. though请问如何选？however 和 though 用于句末时的区别？

问题 宾语后的不定式是定语还是状语？

In 2012, her husband, James, had a stem cell transplant to restore his bone marrow and renew his blood.请问老师，to restore是transplant的定语还是句子的状语，划分的依据是什么？谢谢老师的回答。

问题 系动词后面的介词of是什么意思

The fossil Funk uncovered was of a new species of nodosaur (armored dinosaur) and was the best-preserved armored dinosaur ever found, scientists say.请问老师，上文中的红色of是什么用法，去掉可以吗？感谢老师的回答。