在下面定语从句中填入适当的介词
He built a telescope ________ which he could study the skies．
The pencil ________ which he wrote was broken．
改写句子
An order that no language but German may be taught in the schools of Alsace and Lorraine has come from Berlin．
________________________
Arrangements to install safety devices on all machines have been made．
Many ways to protect our e-mail boxes have been found．
Work on the new system of highways has been started．
A story about a Swede who wanted to join Napoleon’s Grand army is told．
把下列省略句补充完整
(1)The scenery was beautiful, and the acting good．
布景很漂亮，演技也好。
(2)The doctor tried to save her life, but in vain．
医生设法救她的命，但没有用。
(3)She was flying to England, and I to China．
她飞往英国，而我去中国。
I study at college and my sister studies at high school．
_____________________
He could answer the questions very well if he would answer the questions but he didn’t answer the questions．