问题 一个英语中逗号用法的小疑问

...子，这两个句子分别都有各自的谓语动词，但却没有while/when之类的连词，为什么中间可以使用逗号隔开？我认为应该把逗号改成句号才正确啊。请老师帮忙解释一下，谢谢！

问题 一架天平（scales）可以直接用a scales吗

问题 形容词后接that从句或what等从句的用法区别 是否加介词 （make sure和careful）

...，    在我的印象中，像worried这种形容词后接what从句，似乎要说be worried about what...才对，此时的介词about不可省，而be worried (that)...则不可加介词。但是，今天看到了两个形容词，sure和careful，都是直接接that或what从句的，...

问题 take time to do sth 的时间是否应该为具体时间段

曾在"The Economist" 看到这样一句：Even so, it would take until the end of 2022 for annual inflation to slow to the 2% pace that used to be the norm. take 后没有接具体时间段，请问这是什么用法？

问题 immediately,shortly的用法区别

...   D. hurriedly 答案为a,合适么？有人用c哪个更好从句子结构上来说，immediately 可以当做连词用，一……就，起到连接作用，可是后面有 after 二者可以放到一起用么？关键是 after 怎么理解？

问题 a certain patient 和 a patient 含义怎么理解差别

...ed to do so. The following day, the patient asked for a bedside telephone. When he was alone, he telephoned the hospital exchange and asked for Doctor Millington. When the doctor answered the phone, Mr. Gilbert said he was inquiring about a certain patient, a Mr. John Gilbert. He asked if Mr. Gilber...

问题 不定式和动名词可以这样用吗？students前需要加the吗？加不加the有区别吗？

1.Whatching TV to much is bad for your eyes.2.Your work is teaching English.3.Your work is teaching students English.4.Your work is to teach students English.这四个句子对吗？不定式和动名词可以这样用吗？students前需要加the吗？加不加the有区别吗？

话题 every one time和every time

问题 句子时态正确吗？

The story starts back in 1950, when I was five .主句中的Starts用了一般现在时，正确吗？为什么？

文章 从 owing to his hard work 能否作表语说开去

...讲讲，以加强理解和记忆。它只能作状语，不能作表语或定语。例如不能说：He is a student at the age of fifteen. （误）The student is at the age of fifteen. （误）可以说：He went to school at the age of fifteen.（正）◆owing to... 和 at the age of ......

问题 表示整个类属可定冠词也可用复数吗

好像要表示整个类属习惯上是用定冠词加单数名词的吧，应该是不能用复数名词或用单数名词连用不定冠词的。比如：老虎有灭绝的危险。正：The tiger is in danger of becoming extinct. 误：Tigers is in danger of becoming extinct.误：A tiger is in d...

问题 介词短语充当状语后置定语区别

Dollywood, in the beautiful Smoky Mountains in the southeastern USA, is one of the most unique theme parks in the world.in the beautiful Smoky Mountains in the southeastern USA做状语还是后置定语?in the world 也是后置定语吗?

问题 这句是倒装吗？

in what way is the present time unusual in the history of Earth。

问题 请问how引导的感叹句是否可以采用：表语+谓语+主语的形式呢？

比如例句：To realize how great was the dramatic activity, we must remember further that hosts of plays have been lost. 这里为什么不是how great the dramatic activity was，而是how形容词+谓语+主语？

问题 in在下面句子中是副词属性吗

The kitten is so tiny that it could be held in one hand.I can't drink coffee with milk in=I can't drink in coffee with milk.?Nobody was in when we called老师，这几个句子的in是副词的吗？