Question

—My father watches the CBA every Sunday this year.
—Oh? But he ________ like watching CBA, because it was so boring.

A．not used to

B．use not to

C．used not to

D．wasn’t used

Answer 1

C

used to do sth表示过去常常做某事，其否定形式可以是didn’t  use to do sth也可以是used not do sth。