Answer:
Active voice are :
1.
“All of us were surprised to hear the views that he expressed”
2.
“At each new performance of the jazz band, Pat enjoyed the music even more.”
3.
“The gardener can employ several different techniques for grafting.”
4.
“The rhetoric had not persuaded only one person.”
5.
''Congress provided these improvements for bus riders in part through a new program that included two innovations: distribution of funds to localities and provision for annual increases for six years.''