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
...t night because I was so excited.They
were making a lot of noise, so I had to speak loudly.我感到很奇怪，1）为什么都是连词becasue前却没有逗号（，），而连词so前却有逗号（，）？2）我提问的句子，because前可否有一个逗号（，）呢？为什么？
...nly digs a hole,
which makes a person stay trapped inside. After facing up to a fear, one may
find life easier and much more enjoyable.这里的 those very fears 是什么用法？fears 应该是名词吧？为什么前面用 very？
...ust that this September, when they
pulled individual students out of class to tell them just how much they
appreciated them.
did just that this September翻译不出来啊，只感觉是：做那件事情（在这个九月），请简略解答一下怎么样翻译？
...s criticized him ( ) to admit his mistake.
A. had he begun
B. did he begin
问题1.倒装的原因就是因为否定词not在句首吗？
问题2.not until 和 until 有什么区别？感觉意思一样一样的。
问题3.英语里怎...
...hsB a month and a halfC one and half a months该题选AWhat would you like to have for breakfast?( ) and some cakes.A A half glass of milkB Half a glass of milkC Half milk该题选B请问老师half 这个词位置在哪里？好像一会有冠词一会没冠词，记得表示时间时就说 h...
I took her hand in mine．But I managed to talk my way out of them，with luck and with help from Fritz and Sapt．老师，如何理解 in mine，省略了也不影响句子的意思吧， out of 是当一个复合介词吗，没有，失去……意思吗，如何理解这个介词词组？
...相替换吗？这是什么语法现象？I remember we went bike riding together last fall when he visited you.1.在句子里的“went bike riding”，这是什么语法现象？为什么不写成象“go swimming／fishing／shopping／camping”这样呢？2.went bike riding与went riding意思...
...资讯总汇▲语法探讨与商榷▲内容每天更新■2014年 way to doing sth对吗（2014江西卷）■2017年keep your schedule的说法对吗（2017全国卷Ⅲ）■2019年different from的比较对象是否一致（2019全国卷II）not only…but also…可以再连用too吗(2019全...