HELP PLZ!
In the following sentences, identify the words that have prefixes and list both the base word and the prefix.
a.Nina was unconcerned about her library book being late.
b.This caused disapproval among the library staff.
c.They misunderstood Nina's feelings.
d.Nina had prearranged to keep the nonfiction book for an extra week.
e.The person who knew about her arrangement had been replaced.