The young man and the young woman were sitting behind him.He was sitting ___them. A.before B.above C.ahead of D.in front of 老师你好，答案为in front of ，但ahead of为什么不对，我查了ahead of可指空间啊？
...词典里lay 的一条动词解释是：work out (an idea or suggestion) in detail ready for use or presentation.这里ready for use or presentation是状语，但是ready一般都是形容词。是不是只有特定的形容词可以做状语，否则的话形容词和副词感觉没有什么区别...
例如：操作人员必须经过培训、考核合格后方能上岗作业。Operators
must be trained and qualified in examination before they can work on their
posts.
examination本身是可数名词，这里in examination之间是否要加the？
An insensitive remark made long ago or as a one-off is not the same as one made as the face ofthe firm oras part of a consistent pattern.这句话中，as a one-off是和remark做并列的主语还是和made long ago并列做remark的后置定语？
Economy is the use ofthe minimum amount of money, time, or other resources needed to achieve something, so that nothing is wasted.so that nothing is wasted修饰哪个动词？
Some ofthem didn't know whether the plan would be carried out ahead of schedule or be put off.1.请问句中ahead of schedule是什么成分? 这种adj+of+n结构,前后属于什么关系,也是所属关系吗?2.be put off 此处的be是否可以省略？
...，显然是不合乎常理的。请看韦氏英语词典网站的例句：Their
daughter came home from school with tears in her eyes.另例：Because the
underlying problem can cause a tear inthe
other eye as well, she or he will want to
examine both eyes.（选自英语国家网站）为此，...
She is a student in economics inthe University of Hawaii这个句子中的 in economics inthe University of Hawaii 是两个定语吗？in economics是修饰student的定语，而inthe University of Hawaii是修饰economics的定语？还是说inthe University of Hawaii是整个句子的状语...
A number of values and beliefs in traditional societies tend to decrease the amount of money people are willing and able to take from their income and make available for productive investment. In many ofthese societies, gold and silver, houses and land have been some ofthe ways in which wealth has...
...题-再现】Human speech contains more than 2,000 different sounds, from the common “m” and “a” to the rare clicks of some southern African languages. But why are certain sounds more common than others? A ground-breaking, five-year study shows that diet-related changes in human bite led to ...
如果要表示墙上的洞，通常是用介词 in 的。如：The prisoner escaped through a hole inthe wall. 那囚犯从墙上的缺口处逃走了。We used a picture to cover up a hole inthe wall. 我们用一幅画盖住了墙上的洞。但如果要表示房子的窗户呢？用什么介...
...gn a bomb, almost any intelligent person could.suppose...虚拟句省略了then he will be exempted from the disaster of being ordered to leave school?这个主句，那么这里的If I could design a bomb, almost any intelligent person could.是视作第二从句吗？almost any intelligent person ...