Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The government has made a big effort to tackle the two most important _______ issues of our country.
A.society
B.socialize
C.sociable
D.social

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Pat, put all your toys away _______ someone slips and falls on them.
A.otherwise
B.in case
C.provided that
D.so long as

(68.______)
A.inspite
B.so
C.despite
D.because

(70.______)
A.at
B.in
C.on
D.of

The writer wants to prove that _______.
A.our society needs all kinds of jobs.
B.our society needs free education for all
C.a farmer is more important than a professor
D.people with high education refuse to do what they thing “low” work.

The purpose of education is _______.
A.to choose a system of education
B.to prepare children only for their future work
C.to fit everyone for life
D.to build a perfect world

The passage tells us about _______ of education.
A.the means
B.the system
C.the value
D.the type

It can be inferred from the first paragraph that _______.
A.water vapor is an air pollutant in localized areas
B.most air pollutants today can be seen or smelled
C.the definition of air pollution will continue to change
D.a substance becomes an air pollutant only in cities

For which of the following reasons can natural pollutants play an important role in controlling air pollution?
A.They function as part of a purification process.
B.They occur in greater quantities than other pollutants.
C.They are less harmful to living beings than other pollutants.
D.They have existed since the Earth developed.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Tennis fans _____ tickets have been queuing all night at Wimbledon.
A.who are hoped to buy
B.whom hoped to buy
C.hoping to buy
D.hoped to buy