Within minutes of the Pulitze news conference last Monday,Daniel's website biography ________to include the prize. 一道单选时态题 答案是 had been updated 为什么是这个 过去完成时应该要过去的过去 而这里显然更新是在conference后的。
For some time Thomas Henry
Huxley and his workmates had been discussing the possibility that animal
species had evolved, one from another.这里的one from another是作什么成分？是插入语还是状语？还是看成独立主格结构（代词+介词短语）？
Since they have not been brought up in English-speaking family and
since they start English chiefly as something writing rather than spoken，they are ignorant
of a great many everyday expressions that are only too common on the lips of
those whose mother tongue is English我有点不理解这里as...
... influential, and as co-founder and first president of the Sierra
Club, he was an icon and inspiration to the conservation movement. He is widely
remembered as “the father of the National Parks.”As
a young man, Muir demonstrated an unusual talent for building and maintaining
mechanical devices. ...
Scale also helps when it comes to an ever more popular companion to free shipping: free returnscompanion to我查了下朗文词典，有这个解释 one of a pair of things that go together or can be used together。红色的这个意思是否就是对应这个解释谢谢
Economy
is one powerful motive for camping, since after the initial outlay upon
equipment, or through hiring it, the total expense can be far less than the
cost of hotels.请问为什么两个
since after 连在一起用啊？
Chances are that you will
not take a seat at the head of the table or midway along either side: these are
places where the boss would naturally sit.从语法角度上看，冒号后面的these are…是对前面内容的补充说明吗？它充3当什么语法结构？
...的 lessons 和 classes 是否可以相互换过来？Our English teacher was preparing the lessons when I came into the office.Our English teacher was preparing for classes every day.麻烦专家老师分析一下，谢谢！
The woman had a son who was rich. I no longer remember what sort of business he had. He was ashamed of his mother, the washwoman, and never came to see her. Nor did he ever give her any money. 这句中的ever是表示强调吗？ever表示强调的如何能看出来和表示曾经、可能等...