A.permit
B.permission
C.permissiveness
D.permissible
A.valuable
B.volcano
C.voluntary
D.voltage
A.genuine
B.minimum
C.modes
D.generous
A.cross
B.indignant
C.terrible
D.puzzled
A.pipe down
B.pipe away
C.pipe up
D.pipe in
A.logical
B.hones
C.reasonable
D.sincere
A.turned out
B.turned over
C.turned up
D.turned off