It extends 3,000 miles from Canada through the United States

public class StaffLogAction extends ActionSupport implements SessionAware {
x05private Log logger = LogFactory.getLog(StaffLogAction.class);

英语翻译
This Power of Attorney extends to any other agencies or parties necessary for the completion of said adoption,and allows MICHAEL GEORGE RICHARDSON to sign said documents in my place as though I had signed them myself.
授权委托书的授权于到前面所提到抚养的必要的各机构各方,允许迈克尔乔治理查德代替我签署该文件
以上的中文是我的答案，可是 in my place as though I had signed them myself，此句未翻译

问2道SAT语法题!
1,The habitat in which sequoia trees grow,extends （这里错了,请问为什么?) from southern oregon to northern california,is kept damp year- round by heavy seasonal rains,cool coastal air,and fog.
2,Chimpanzees in western Africa's Tai forest crack nuts by placing them on tree roots and striking them with stones,a learned behavior probably unique to (我不懂什么时候用to,about,for,等等,记得以前一个题目说to 后跟动词,为什么这里可以是to呢?）chimpanzees in that area.

1.The coast line extends about 2 thousand kilometers ___________.
A.frome east to west B.frome the east to west
C.frome the east to the west D.from the eastern to the western

英语翻译
丝绸之路延伸6000多公里,得名于古代中国的丝绸贸易.
我的翻译：The Silk Road extends more than 6000 kilometers,which was famous for the silk trade of ancient China.
extends后面是否要加to?
是翻译成我这样好,还是分成两句比较好?
The Silk Road extends more than 6000 kilometers.It was famous for the silk trade of ancient China.
因为我觉得用定语从句,which弄不清是指代逗号前面整句话还是单单指silk roads

silence extends its wings,and behind the shadows of the dark alcove the lamp burns
后面半句怎么翻译,成分怎么分析啊,

英语翻译
This extends the company’s portfolio of thermal materials to even higher heat spreading capabilities.

英语阅读理解题
the period of middle english extends roughly from the twelfth century through the fifteenth.the influence of french (and latin,often by way of french) upon the vocabulary continued throughout this period,the loss of some inflections and the reduction of others accelerated,and many changes took place within the grammatical systems of the language.a typical prose passage,especially one from the later part of the period,will not have such a foreign look to us as the prose of old english,but is will not be mistaken for contemporary writing either.
the period of modern english extends from the sixteenth century to our own day.the early part of this period saw the completion of a *** in vowel distribution that had begun in late middle english and that effectively brought the language to something resembling its present pattern.other important early developments include the stabilizing effect on spelling of the printing press and the beginning of the direct influence of latin,and,to a lesser extent,greek on the vocabulary.later,as english came into contact with other cultures around the world and distinctive dialects of english developed in the many areas which britain had colonized,numerous other languages made small but interesting contributions to our word-stock.
3)it can be inferred from the passage that today_
a)a person can pronounce old english words but cannot understand them
b)an educated person can understand old english but cannot pronounce it
c)even an educated person can not read old english without special training
d)a person with sufficient knowledge of french can understand old english
4)we can infer from the passage that a prose passage from the fifteenth century_
a)looks like foreign language to contemporary english readers
b)looks more like contemporary english than old english
c)can be understood by contemporary readers
d)is almost the same as modern english in grammatical structure
5)what is the most remarkable characteristic of modern english?
a)the emergence of new varieties in many parts of the world
b)gradual changes in its grammatical system

请帮我翻译跟服装有关的一句话!
A gown extends all the way to the floor,allowing for a sweeping entrance into a room.
重点在后半句,ALLOWING后面!谢谢!

java.swing
class testLogin extends JFrame
{
public testLogin()
{
setTitle("1234");
setSize(370,450);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
JLabel lab=new JLabel(new ImageIcon("1.jpg"));
add(lab);
JLabel lab1=new JLabel("aaa");
lab.add(lab1);
}
public static void main(String[] agrs)
{
testLogin tf=new testLogin();
}
}为什么aaa字符串显示不出来?

一道SAT语法题!
The "Mayan Riviera," which 【extends down】 the eastern coast of Mexico,【has many hidden】 caves,one 【of which】 is larger 【than the size】 of Monaco.
括号里哪里错了?能不能把比较的平行结构讲一下?详细一点有分加～
than the size 错了，为什么错