It was porters and large or small horse caravans that brought back and forth goods inclu-ding tea , horses , fur and traditional Tibetan medicine along the Road.这里porters and caravans明显是复数，是因为看成整体所以用it来强调吗？
When I grow old one day, please be good to me and try to understand me.
If I get dirty when eating or if I cannot dress, help me, remember the hours I
spent teaching it to you.这里的it指什么呢，指动词eating和dress嘛？it可以指代动词嘛？
老师好！上面文字摘自绘本故事《Alexsander,who used to be rich last Sunday》，请教老师画框句子的结构和意思：Except the way I rescued it from being melted or smushed was that I ate
it. How was I supposed to know it was Anthony's?谢谢老师!
The
wheel so fascinated the mind of man that he has spent centuries building
machines around it; yet in over 4000 years he has not changed its basic design.请教专家老师：这里的yet究竟是副词还是连词？遇到这种情况，总是搞不懂yet的词性和含义，请问老师有什么...
...s on business - method
claims would be a dramatic aboutface because
it was the Federal Circuit itself that introduced such patents wih its 1998
decision inthe so -called Stae Street Bank case, approving a patent on a way
of pooling mutual - fund assets.句中最后这个approving的句子为什么...
The city’s growth in importance as an economic center has been slow.1.请问in importance是做方面状语吗？2.In importance可置于句末变为以下句子吗？即：The city’s growth as an economic center has been slow in importance.
...卷1的语法填空题：Fat and salt are
very important parts of a diet. They are required to process the food that we
eat, to recover from injury and for several other bodily functions. When fat
and salt are removed (remove) from food, the food tastes as if it is missing
something. As a result, pe...
...，严禁下载他用）【教材原文】5 Work in groups.
Choose one ofthe situations and make a conversation. Try to use theintroductions and greetings below.●A boy meets a girl during a break.●An exchange student is talking to a
teacher on campus.●A boy and a girl are at the airport to
m...
Advertising is the largest expense of most marketing plans, with public relations following in a close second and market research not falling far behind.with在这里表示什么意思，在句中做什么成份？
英文：In China,ostensibly the focus of Mr Trump's actions,the public response has been more restrained.中文：中国显然是特朗普行动的标靶，而中国政府的公开回应一直比较克制。疑问：句中 ostensibly 是副词，放在短语的首位，这怎么理解？