If the oxygen supply in the atmosphere was not replenished by plants it would soon be exhausted.
A.supply
B.was
C.by plants
D.exhausted

Many children are under such a high __________ of learning that they do not feel happy at school
A.recommendation
B.interview
C.pressure
D.concentration

More than ten victims ___________ missing in the storm last week.
A.are reported to be
B.are reported to have been
C.are reporting to have been
D.are reporting to be

The man _________ under oath at court was charged with perverting the course of justice.
A.lied
B.lain
C.lay
D.lying

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