It is __________ opportunity to see African wildlife in its natural enviroment.
A.an unique
B.a unique
C.the unique
D.unique

___________ that I tore up the letter.
A.I was such an annoyed
B.So was I annoyed
C.I was so annoying
D.Such was my annoyance

A two-thirds majority in Congress is required if a bill is to become law.
A.desirable
B.necessary
C.acquired
D.optional

Constant correction by a teacher is often counterproductive, as the student may become afraid to speak at all.
A.desolate
B.unproductive
C.barren
D.effective

A.documentary
B.population
C.maximum
D.stimulate

______ (22)
A.with
B.at
C.for
D.on

______ (23)
A.adequately
B.absolutely
C.highly
D.mainly

______ (24)
A.state
B.condition
C.condition
D.situation

______ (25)
A.paying
B.pay
C.paid
D.to pay

______ (27)
A.charge
B.money
C.allowances
D.fees