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问题 if 条件句可以改成 if doing sth 吗

If stopping being a couch potato and to go outside regularly, they would certainly get away from the trouble.请问这个if条件句用的对吗？

问题 关于感官动词hear和see

...作被看成有开端有结束的事件 书中给出3个例子 I heard the bell ring。(事件被看做一个整体)                                I could hear the bells ringing。（感觉持续一段时间）                            I heard the bells...

问题 before 连接的句子主句何时用过去完成时新概念三第6课习题

He_______the display for several minutes before re-entering his shop.A. was gazing at   B.gazed at C.had gazed at   D. had been gazing at这个题目答案是B，想知道为什么不能用过去完成时或者过去完成进行时

问题 介词短语所做的成分(in part because of the tariffs)

China's economy is already slowing, in part because of the tariffs.请问这里的 in part 介词短语作什么成分？是特殊的副词吗？

文章 高中英语新课标词汇-教学参考资料-addicted

...都需要药物治疗。2.用作表语(1) be addicted I started watching the show out of curiosity, but now I’m addicted! 我出于好奇开始看这个节目，可是现在看上瘾了！She says she’s unable to give up smoking; she’s completely addicted. 她说她无法戒烟，已经完全...

问题 帮看下这句子吧？

 At specific issue is a confrontation from January 13 when Bush and her staff encountered Greene without a mask and talking into her phone in the tunnel between the Cannon Office Building and the Capitol.这句话中的taⅠk是不是应改成taⅠked？

问题 请教You are the master of your life

能用in your life 吗？两个介词in of都可以还是只能择其一？自我感觉两个都正确。

问题 关于句中with前后加逗号的问题

Since the sea covers the greater part of the earth's surface, it is quite reasonable to regard the sea floor as the basic form of the crust of the earth, with, superimposed upon, it the continents, together with the islands and other features of the oceans.参考译文：既然海洋覆盖着地球...

问题 The line was busy. Someone ____ the telephone. A.

老师您好，答案是B，参考书的解释是对现在动作完全肯定的推测，使用must be 或者must be doing. 我不明白的是这句话不是对过去情况的肯定推测吗？占线发生在过去，有人在打电话也是在过去呀。还有就是A选项的结构是对过去正...

问题 The line was busy. Someone ____ the telephone. A.

老师您好，答案是B，参考书的解释是对现在动作完全肯定的推测，使用must be 或者must be doing. 我不明白的是这句话不是对过去情况的肯定推测吗？占线发生在过去，有人在打电话也是在过去呀。还有就是A选项的结构是对过去正...

问题 关系代词是先行词中的一部分时冠词怎么没了

1.例句：There are four rooms in the house, the biggest of which is a drawing room.  翻译：这房子里有四间屋子，其中最大的是一件画室。 分析：在这个非限制性定语从句中先行词应该是 rooms，关系代词是 which。 which 在从句中的...

问题 to that of中的that引导什么从句

The elevation of the room that once belonged only to the servants to that of design showcasefor the modem family tells the story of a century of social change.&...

问题 介词作宾语的例句如何理解

...Article/201202/2772.html 5. 用作宾语A man stepped out from behind the wall. 一个人从墙后面走出来。He cannot spare any time except on Sunday. 除星期日外，他抽不出时间。I won’t go home until after the exam. 我要等考完后再回家。我觉得介词...

问题 It is kind of sb to do sth 的同类归纳

我知道 It is kind of you to help us 中习惯上用 of，不用 for。能麻烦老师归纳一下这类形容词吗？只要一些常见的就可以了，相当于高中范围的吧。谢谢！

问题 in which,for which,on which,at which有什么区别

... for.= Tomorrow I will bring here a magazine for which you asked.2.This is the hotel where ( =in which / at which) they were staying.3.An ltalian about whom little is known,sailed into New York....老师，介词后的which或从句，如何区别它们是固定搭配或介词前置到连接词的...