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问题 than用法疑问（来自cnn ）

The network uses WiFi technology and sensors to produce position data than is more accurate than GPS, the location system used in smartphones. 请问第一个 than 是不是应该是 that？谢谢。如果是 than，请大概解释一下句意。

问题 as early as 用法

The festival began to be observed as early as in the Warring States Period.句子里as early as 后面的in是否多余呢？我在语料库里没找第二个as后面加in的，如果加in，那as什么词性呢?

问题 satisfied还是satisfing

请曹老师能够帮我解答:The policeman put down the phone，____with a smile on his face．A. satisfied   B. satisfying  C. to be satisfied  D. having satisfied为什么不选B而是选A，我认为这两个动作应该是同时的啊。

问题 cause可以用双宾语结构吗

The earthquake caused great damage to his property.请问上面这样的例句,它是双宾语结构吗?是不是也可以调换成下面这样?The earthquake caused his property great damage.

问题 that后面是动词还是名词

The marginal wetlands that remain continue to be threatened by reclamation for farms and homes. 如何理解此处的remain continue？ 难道remain后面可以接动词吗？ that remain不是做The marginal wetlands谓语吗？ continue这里又是一个谓语？ 双谓语吗？

问题 and是否属于画蛇添足

Oversight may be weaker. And the development of vaccines and treatments adds to the risk of bribery and profiteering.老师您好,请问第一句是句号，第二句加了一个and 是否属于画蛇添足。

问题 名词advocate和advocator区别

He is an untiring     of educational reform.He  advocates      the teacher for the excellent jobs. A advocator  rewarding   B advocate  rewarding 为什么选a advocate做名词也有提倡者的意思为什么advocate不能加to do

问题 关于状语要不要逗号隔开的问题

Ben's Place is easy to find, but it's not in the town square, with all the other restaurants and fast food cafes.请问老师，逗号后面的with结构可以不用逗号吗？谢谢！

问题 If的虚拟语气问题

It’s hard to imagine what rock would be like if there had not been English performers such as the Beatles, the Rolling Stones, and David Bowie.请问老师，if这个句子是对过去情况的虚拟吗，主句没有用would/ could / might have done?

问题 分析一个作文句子

...谢老师！2. Thank you so much in advance for your time and attention to the message and the sincerity anticipates your reply. 老师，这个sincerity是无灵主语对吗？

问题 过去将来完成时与虚拟语气的区别

专家请看以下句子（摘自考研英语某篇文章）：In the early days, too, longlines would have been more saturated with fish. Some individuals would therefore not have been caught, since no baited hooks would have been available to trap them, leading to an underestimate of fish stocks i...

问题 定语从句中when可以用that替代吗?

There was a time when the owners of shops and businesses in Chicago had to pay large sums of money to gangsters in return for protection.请问此处的when可以用that替代吗? in return for protection 在这里理解为原因还是目的?

问题 it可以指代同一句话中前面的名词吗

...n with combustible materials coupled with close placement of buildings and the use of open flames in heating, cooking, and lighting meant that the potential for raging fires was ever present. Lack of sanitation, and the ensuing public health problems it created, was a more constant, if less dra...

问题 would see 和 will see的选择问题

The pollution is likely to reach its peak on Monday, and some parts_______ heavy air pollution, the environmental watchdog told the newspaper. A. see B. will see C. would see D. saw 老师，这题选B，一个句子里面有过去式和现在时，但是是怎么排除C的呢？

问题 主句是一般过去时从句为什么用一般现在时

The police asked the community to hold off on crime until the heat wave passes in a Facebook post Friday. 句中passes为什么用一般现在时，主句是一般过去时，我总感觉时态不对。