Had he worked harder, he ( ) the exams.A. must have got throughB. would have got throughC. would get throughD. could get through答案B.但我个人认为，从句意和语法来说，任何一个选择都可以。不知道我的理解对吗？麻烦老师分析一下，谢谢！
The Asuka period (飛鳥時代, Asuka jidai) was a period in the history of Japan lasting from 538 to 710 (or 592 to 645),为什么这里用a period？而不是the period 后置修饰语应该能够把这个时期修饰到确定的一个，为什么还是a
To such thermometers are attributed the accuracy of much of the work done in low-temperature physics since 1951.主语是the accuracy of much of the work done， 这里为什么谓语用are ? 能否举一些例子说明，谢谢！
...than if government health authorities stored the data.信标数据就在人的手机上，与政府卫生当局存储这些数据相比，这并不是黑客的攻击目标。上面，出现了less of a target...than...,请教老师，less是代词吗？指代什么呢？另外，我想知道，less ...
... in blue shirts,and one of these is responsible for each class.是说所有的instructors(各自负责自己班)中，有一个人是总负责every class的? 还是one of these也能=each of these，表示每个instructor负责各自班级？
这是教美式发音的美国老师说的：There's no way you won't improve dramatically.If you get bored working one way, try out one of the other five tricks.请教老师：上面出现了 get bored working - 有get bored doing 这种用法吗？麻烦老师讲解一下。谢谢！
原题是The three of them went back home, hungry and tired. 这里是形容词作状语表结果。那如果把逗号去掉，改成The three of them went back home hungrily and
tiredly.可以吗？这时候的hungrily and tiredly是什么副词呢？
2020·浙江卷完形填空最后一个句子：Don was given a special meal that night—I didn’t want him thinking I was angry with him.want这个单词不是want sb to do sth,这样来用么，怎么用了动名词复合结构呢？谢谢老师们！