However wealthy we may be, we can never find enough hours in the day to do everything we want. Economics deals with this problem through the concept of opportunity cost, which simply refers to whether someone’s time or money could be better spent on something else.Every hour of our time has a valu...
...th the school hours in Britain because school starts around 9 a.m.and ends about 3.30 p.m.This means I could get up an hour later than usual as schools in China begin before 8 a.m.▲句中的红色划线部分第一处 school 用的是单数，但第二处的 schools 却用的是复数。为什么...
...: In the
crowd of special troops, two Chinese are left over four qualified students
after three-month-long devil trainings. 这部影片的内容并不复杂：一群特种兵，两个中国人，三个月的魔鬼训练，剩下四个合格的学员。8. However, this position frequently requires
t...
下面这个句子对吗？ The man spent all his knowledge on his research for about 10 years but achieved nothing.请问这个句子中的 spent all his knowledge on his research 用得对吗？换句话说，spend 可以接 knowledge 作宾语吗？谢谢！
...许可。B.
为了发出邀请。C.
表示表示感谢。 7.
When are thestudents going to the museum?A.
On Friday.B.
On Saturday.C.
On Sunday.7.
这些学生什么时候去博物馆？A.
星期五。B.
星期六。C.
星期天。 8.
What are the speakers talking about?A.
Buying groceries.B.
Choo...
例句：That did it. Here was a kid who had flunked twogrades, who had been told he was‘brain-damaged，’who had been called‘Frankenstein’by his classmates and told his brains must have leaked out of the cut on his head. Suddenly he discovered he could really learn and accomplish things. T...
You can spendhours wandering around the department stores, leisurely inspecting the items for sale, or hunting for some antiques along the sidewalks, where you’ll most likely be amazed by the variety of things on display. 请问老师：1.主句结构中是 spendhours (in) doing sth。那...
...动词，而A的第一个词却是名词？22.
To complete the programme, students are required to _________.A.
development tests B.
participate in pair meetingsC.
welcome new students D.
work on weekly videos附原题全文：The
Language Exchange Programme allows students in pairs to communicate i...
Two men who recently spent five days on a coral island wished they had stayed there longer.这句话可不可以改成：Two men who stayed on a coral island for five days wished they had stayed there far more days.
...Software Group in Shenzhen, found that 3 elderly workers liked to complain about everything, from extended working hours to cheap hotels on business trips.老师，这里的extended, 怎么是ed的形式，from是介词，难道是形容词修饰hours?
students who watch television frequently may not be able to concentrate on learning task,a problem which can lead to poor grades.
此处的lead to 是否可以用result in 或者bring about 替换呢 三者之间又有什么区别呢？
谢谢解答
...希望能够多多提高吧。The submarine was found on August 11, about 15 hours after it had departed Copenhagen.我记得的曹老师对句子有解析如下(不好意思，我只是按照我的理解，希望没有误解老师的意思)On August 11和About 15 hours after it had departed Co...
...ive thousand hours，i am told, are what a typical college
undergraduate spends working on a bachelor's degree. (2) In
10,000 hours you could have learnt enough to become an astronomer. (3) If it
appealed to you, you could be reading Homer in the original Greek. (4) If it
didn’t, you could have...