Ⅰ.单项选择
( )1.[2017·铜仁改编]—How does your father go to work every day?
—He used to ________ a bus but now he is used to ________．
A．take; walk B．taking; walking C．take; walking
( )2.[2017·常州改编] I'll never forget the town in which there ________ a clean river and many big tall trees.
A．used to be B．used to have C．was used to being
