分解因式：
（1）a3﹣a=( )；
（2）x2﹣2xy+y2﹣1= ( )
（1）a（a+1）（a﹣1）；（2）（x﹣y+1）（x﹣y﹣1）
宋朝史馆与唐朝使馆的区别？
(2013·高考福建卷)—Do you think George has passed the driving test?
—No.If so，he ________his car to our college yesterday.
A．would drive
B．drove
C．would have driven
D．had driven
