Mike is older than Jane书上说上句其实是省略了is: Mike is older than Jane (is),我想知道，如果（仅仅是假设）is 后要补全的话，是old 还是older 呢？即（假设正确的话）Mike is older than Jane is old/older ?我知道is...后必须要省略，但是假设补全...
2016年广东一模:To my surprise，Dad took it，smiled at Mom and ate up. They were asked to rank up them，in the order they would vote for them. 这两个句子中逗号是什么用法 能否请老师总结一下相关的用法!
This allows me to address any important and time sensitive issues, while maintaining a distraction-free environment throughout my work day.这个句子中的while是什么用法？如果去掉while，再去掉逗号，这个句子还对吗？
I realized how little time I had spent outside the university libraries
and my living place. 请问曹老师，这里的how 如何解释？如果是由感叹句转化而来的宾语从句，那么how 不是只可以修饰形容词或者副词，what 后跟名词吗？有点琢磨不明白了。
...ast night’s storm. 我们的暖房在昨晚的暴风雨中被毁环了。My
small greenhouse gets very hot when the sun is shining. 我的小温室在太阳照耀下会被烤得炙热。Conditions
in the greenhouse are carefully controlled. 温室里的环境处于精心的控制之下。Keep
the ...
...注释】......注意下列句子的几种表达形式：【1】Knowledge is to the mind what light is to the eye.【2】Knowledge to the mind is what light is to the eye.【3】What light is to the eye, that knowledge is to the mind.【4】What light is to the eye, that is knowledge to the mind.【...