(1) c
(2) b
(3) a
(4) d
(5) a
(6) c
(7) c
(8) b
(1) benefit
(2) required
(3) be ahead
(4) continue
(5) main
(6) rule
(7) permanent
(8) paper
(1) stationary
(2) proceed
(3) precede
(4) perquisite
(5) stationery
(6) principle
(7) principal
(8) prerequisite