Cigarette smoking is believed by most researchers in the field to be an important cause in the development of lung cancer and throat cancer and is believed to have much to do with some other kinds of cancers.老师，have much to do with字面意思难理解，是固定搭配吗，为什么纸质词...
定语从句与先行词可以被连词隔开吗？ The irony is that Mrs .Gandi presides over a nation with a promising long -term potential but which is saddled with equally difficult current problems.
以下这句来自外刊中的一句口语引用，请问老师 it is 做什么成分呢？The concept of a free trip isn't exciting enough if it’s the same hurried experience it is when you’re going on a trip.
It is natural for person like her, with her personal sufferings as an insignificant daughter-in-law in a big feudalistic family这个with引导的是什么成分，我只见过it is for sb to do 的结构，这个没看懂。这是不是个错误的句子。
He sat in the front row, his mouth half open.他坐在前排，嘴半开着。这里应该是his mouth half is open，还是his mouth is half open，half是副词？The people, their livelihood secure, now have the leisure to take up sports.their livelihood secure独立主格可以放句中？
...师您好!今天遇到下面一个句子：The Charpy V-notch impact test is a dynamic test in which a notched
specimen is struck and broken by a single blow in a specially designed testing
machine.上面粗体的部分是一个定语从句吗？如果是的话先行词在从句中做什么成分？
...师们关于择比结构的疑问It was not necessarily an asset’s own riskiness that is
important to investor, so much as the contribution it makes to the volatility
of the overall portfolio.这个句子中前面的这个句子是强调句么？我觉得拿掉it
is that 前面的这个句子依...
Tóibín, with a style as spare as Mann’s is ornate, brings a
measure of warmth to an outwardly chilly figure. 请教下大家这句话with a style as spare as
Mann’s is ornate, 这部分怎么理解？这里是指Toibin和Mann的风格都是spare吗？那ornate是干嘛的
...海去了，对不对？（摘自《薄冰英语惯用法词典》p.591）She must have attended the meeting yesterday evening, didn’t she ? 她昨晚肯定参加了会议，对吗？ （同上） 【参考】有人认为，在国外语法书中没有看到这种用法中的附加问句部分...
...关系副词无法作主语，只能作状语。
where的用法
a） Thisis the town where I spent my childhood.
b） Thisis the town which I told you about before.
c） I know a couple( ) the man is American and the woman is Chinese.
d）I’ve never been to Beijing, but it’s the place （...
原句：The central question is what developing an idea of children in the singular has done to Chinese society;翻译：问题的核心在于，独生子女政策究竟对中国社会产生了怎样的影响这句中，what 是引导表语从句，请专家分析一下 is what developing 及 what ...
It is also less than most forecasters had predicted.这个句子为什么不能写成：It is also less than what most forecasters had predicted.predict后不缺少宾语吗？为什么可以用that做引导词？谢谢！