Everyone else was happy to find a letter or two, while my record was about 12 letters and packages from friends in one day.请问句中，12 letters and packages 指的是 12 letters and 12 packages；还是 12 letters 和一些 packages？
He was ridiculed and scoffed at, just as we have been ridiculed.1. ridiculed and scoffed at 是不是等于 ridiculed at and scoffed at？2. ridiculed scoffed 是不是同义词，都有嘲笑的意思，两者有什么区别？
...以加哪里不可以加逗号，有什么规律吗？1. Without a strong and stable subgrade there is no stable pavement. 可以改写为：Without a strong and stable subgrade，there is no stable pavement. 2. The difference between the Structure III and Structure II is that the Structure III util...
Although it has been possible to infer from the goods and services actually produced what manufactures and servicing trades thought their customers wanted，only a study of relevant personal documents written by actual consumers will provide a precise picture of who wanted what.这句话中what manu...
Motorized scooters, historically powered by gas engines, and more recently electric motors, are self-propelled kick scooters capable of speeds of around 35 km/h.请问老师：1 historically powered by gas engines, and more recently electric motors 这是and连接的并列过去分词短语共同...
...考试的找错题：They pointed out the damage which
they supposed that had been done by last night's storm.（注意这是个错句）我想说其实这句是来源于Quirk的名著上的一个例句（见P1050），这题就是直接照抄照搬下来的。其实这是一个很值得研究的问...
Brochures, posters and packaging are effective ways to provide a combination of moving and static visual impact with the most versatile applications. Brochures inform, posters inspire and packaging validates the customer’s buying decision.inform，inspire，validates是并列谓语吗？
From a rooftop cafe, one can see the Sun and Moon towers on Fir Lake as the city sprawl continues into the distance, giving way to bright green forests and hills, the stunning landscape Guilin is famous for.
请问giving way to bright green forests and hills在这里做什么状语？
Aerosols, tiny particles of soot, dust, and other materials, are thought to seed cloud formation scatter incoming radiation and promote cooling, but this effect, which would counteract warming, is also only superficially understood. 无法明白are thought to seed cloud formation scatter incomi...
Life, at its twilight, becomes a good wine waiting to be savored, calm and profound in its color yet full of generosity and wisdom in its flavor.请问老师 此处calm and wise， full of generosity是形容词作主语补足语吗？
在一本书上看到这样一句被动语态：A good time was had by all the students who took part in it. 参加这项活动的学生都玩得很高兴。觉得这里的have a good time 用于被动语态有点别扭，请问have a good time可以像这样用于被动语态吗？
...ses others don’t want to touch. He doesn’t expect a lot. Mabry said he hadn’t planned to do much for his milestone birthday, so he was happy the students had prepared the surprise celebration.不明白 works circles 是什么用法。
it is what powers the giant advertising and marketing industries in their relentless attempts to map and exploit our cognitive and emotional vulnerabilities.
请问what在从句中作什么成分？能详细讲一下what在从句中的用法吗？