A.neither
B.either
C.each
D.both

The lost hikers stayed alive by eating wild berries and drinking spring water.
A.connived
B.survived
C.surprised
D.revived

We offer a speedy and secure service of transferring money in less than 24 hours.
A.uninterested
B.unsure
C.slow
D.open

There is growing concern about the way man has destroyed the environment.
A.ease
B.attraction
C.consideration
D.speculation

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