A.eradication
B.similarity
C.resolution
D.contradiction

A.validity
B.tremendous
C.flexible
D.commercial

A.volcanic
B.computer
C.advocate
D.proposal

The polar bear is a(n) __________species.
A.endangered
B.dangerous
C.imprisoned
D.preserved

________(73)
A.lift
B.support
C.push
D.rise

________(75)
A.along
B.round
C.across
D.wide

________(77)
A.spoiled
B.disturbed
C.unfluenced
D.affected

________(78)
A.pour
B.sweep
C.flood
D.hurry

________(80)
A.only
B.always
C.regularly
D.ever

A.comment
B.value
C.estimate
D.judge