A.clean
B.keep
C.weaken
D.refresh
A.punishing
B.praising
C.forgiving
D.blaming
A.drive
B.shift
C.put
D.drag
A.lost
B.located
C.occupied
D.trapped
A.essential
B.impossible
C.valuable
D.unavoidable
A.prove
B.represent
C.reflect
D.mean