(1) b
(2) b
(3) c
(4) b
(5) a
(6) c
(7) a
(8) b
(1) illegible
(2) irreversible
(3) invariable
(4) hasty/hastily
(5) carefully; careful
(6) talkative
(7) priceless
(8) joyous
(9) saplings
(10) simplify