语法

一、被动语态
The virus in the computer has been found out.
These bugs in my program have been fixed.
My computer has been sold out
Electricity was discovered a very long time ago.
The book was broken
This machine is controlled by a computer
My program is approved(准许) by the top team in my company
二、定语从句
This is the software that I would like to buy
This is the program that I would like to delete
The girl that I met in the hospital last night is passing by my side just now, and she is so young