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问题 with or without having symptoms的分析与理解

We use current COVID-19 infections to mean testing positive for SARS-CoV-2, with or without having symptoms.老师们，这里的with or without having symptoms感觉很别扭，好像它是一个独立的存在，请老师帮我解析一下这个短语的作用

问题 名词后接etc作主语时谓语动词用单数还是复数

He said that the salary etc ______ put down in the contract.A. was          B. were请问是选 was 还是 were？换句话说，名词后接 etc 作主语时谓语动词用单数还是复数？

问题 lie back与lie on one’s back的区别

The man lay back on the bench, with a book on his face.这里的 lie back 是什么意思？是表示“仰卧”吗？为什么不用 on his back 呢？

问题 为什么是 how do she...而不是是 how does she...

为什么是:How do she spells the word?而不是：How does she spell the word?

问题 in front of与ahead of的区别

The young man and the young woman were sitting behind him.He was sitting ___them. A.before B.above C.ahead of D.in front of   老师你好，答案为in front of ，但ahead of为什么不对，我查了ahead of可指空间啊？

问题 距离的英文表达问题（miles from/miles away from的区别）

下面两句的区别：We are a thousand miles from the city.We are a thousand miles away from the city.away在这里是副词还是形容词？

问题 09年7月英语语法试题选择题第四题详细解释

It is recommended that the students _______ the oral interpretation test until they have had enough preparation.A. not takeB. takeC. don't takeD. will not take

问题 ​关于it的指代问题

...是一个作家在出版作品HEDRA后接受采访。采访者问"Has the success of HEDRA changed how you see your career going forward? Has it impacted your perspective on where it could be heading and your future in  science fiction?"请问第二个问句中的两个it分...

问题 不知道of前面的名词该用单数还是复数，可以用单数吗？为什么

The pronunciations/pronunciation of the two countries are/is different.

问题 省略引起系词和表语被逗号分隔

...个逗号都去掉？其他类似的句子还有很多：George will (take the course), and Bob might, take the course.这些逗号的作用是什么，能否删去？

问题 奇怪：这个祈使句省略的主语不是you

...个句子： Our boss is really a kind-hearted person—always ready to help anyone in need. 我们老板确实是位热心肠的人——总是乐于任何需要帮助的人。 这个句子破折号后面的祈使句的主语好像是our boss吧！这不是破坏了“祈使句...

问题 learn后接动词时用不定式动还是动名词

假若要在learn后接动词作宾语，是用不定式动还是动名词？比如：比如：他在学习踢足球。应用下面的哪一句？He is learning playing football.He is learning to play football.

问题 wrong pipe的意思以及just all的修饰问题

...不应该翻译为“错误的管”吗？2. We are just all so thrilled to be here. 这句中 just all 这两个副词修饰什么？

问题 此句的现在分词作状语是垂悬语病吗

Sometimes it is easy to put off writing a letter, thinking that there will be plenty of time tomorrow.请问老师，thinking that there will be plenty of time tomorrow 是现在分词作伴随状语，它的逻辑主语应肯定是人； 而主句中主语是形式主语it。该怎么解释呢？

问题 for many, many years这样的用法要怎么理解

“Some of us have known for many，many years that the freedoms under the First Amendment are not totally unlimited，”says Luce.“我们中的一些人多年以来就知道，《第一修正案》所提到的自由并非是毫无限制的，”鲁斯说到。请问many为什么要重复呢？