1.She's not answering the
doorbell. She must not be at home.请问must not表推测时，可以缩写为mustn't吗？话句话说，mustn't是不是只能用于表“禁止”，不能用于表推测？ 2.No one else could have
done it – it had to be Neville.If Bley was aboard, he had
to have hea...
...成时Andy and Tom talked for three hours.一般过去时We have been waiting here for some time.现在完成进行时2怎么区分辨别和使用，现在完成时和现在完成进行时呢？现在完成时,有表示从过去开始，一直持续到现在的动作，可能还会持续下去如The...
...ocess or system by which goods and services are produced, sold, and bought in a country or region以上定义来自韦氏高阶词典问题：这条定义当中的by which能否替换成where作为”抽象性地方名词process/system”的关系副词去自行理解。常用的关系副词why/wher...
“It is the 21st century now and we are in a society where people live a relatively comfortable life.” So begins Jim’s composition.
请句中的 So begins Jim’s composition 算倒装句吗？不倒装是不是应该这样写：Jim’s composition begins so. 谢谢！...
例句一: A small electronics manufacturing company makes a presentation to the board whether to outsource their distribution or build their own warehouse.例句二: Land was previously occupied by chemicals plant (now demolished).例句一的 electronics 用复数，就像 the American electronics...
...，请问是不是缺了什么？The electrons, like Cowper’s God, move in mysterious ways their wonders to perform, and some quirk of character or circumstance may upset national equations, as when Alexander drank himself to death and let his new empire fall apart (323 B.C.), or as when Frederick...
人教版高中英语教材必修一听力填空题：Listen again and help the reporter to complete the
interview notes.International
youth project, _____ high school students from 7 countries Mount Tai, one of
the most _____ mountains in ChinaIt has been _____
for more than 3,000 years. 22 temples...
...got the knack. 你一旦掌握这个技能就容易了。Once you're stuck in deep snow, it's difficult to lever yourself out. 你一旦陷进深雪中, 那就很难出来。Remember, once you've signed the contract, there is no turning back. 记住，一旦签了合同，就不可能反悔了。Onc...
Based on their findings, they identified a succession of phases of agricultural development in the wetlands there, with several of these phases predating the earliest known agricultural influence from Southeast Asia.请问老师：句中predating...是宾补还是后置定语，是不是只能根据...
Find things in common: Maybe you like the same sports team or the same books. When it comes to making friends, you should always follow the easiest rule: Have fun! You may make some new friends before you know it.在该段话里you是你还是你们，有判断是你，你们的规则吗？两个it...
Among the reasons, judging the fairness of elections is a monumental task in a nation like the United States,where all 50 states have differing laws and rules for voting and counting ballots.请教老师： 上句中出现的differing 和 different 究竟有何不同？ 如何从语法上，含义...
Before
he had entered the institute, Jim served in the army.为什么当before使用过去完成时的时候，主句为什么不用过去完成时呢？主句的动作显然发生在before从句动作之前，按理主句应该用过去完成时呀！？所以我的疑问是我提问的句子，bef...
...-126页： I
haven't heard from him since he lived in Shanghai.(自从他住在上海那段时间，我就没有接到过他的来信。)He
has written to me frequently since I was ill.(自从我上回生病期间，他就频频给我写信。)Since
he was at Fu...