A.merchant
B.term
C.commercial
D.sergeant

A.obstacle
B.obscure
C.obsession
D.oblivious

A.Valentine
B.imagine
C.discipline
D.determine

It was suggested that Pedro studies the material more thoroughly before attempting to pass the exam.
A.studies
B.more
C.attempting
D.to pass

Chicago's Sears Tower, now the tallest building in the world, rises 1,522 feet from the ground to the top of it antenna.
A.now
B.rises
C.feet
D.it

Many of the important products obtained from trees, one of the most important is wood pulp, which is used in paper-making
A.Many of the
B.obtained
C.the most
D.paper-making

The word "consequence" in line 2 is closest in meaning to…………….
A.result
B.explanation
C.analysis
D.requirement

Ancient Egyptians mummified their dead through the use of chemicals, ………….ancient Peruvians did through natural processes.
A.because
B.whereas
C.even though
D.whether or not

I studied English for four years in high school. ……………had trouble talking with people when I was traveling in the US.
A.Therefore, I
B.Otherwise, I
C.Although I
D.However, I

There seems to be a large …............……. between the number of people employed in service industries, and those employed in the primary sectors.
A.discriminate
B.discretion
C.discrepancy
D.distinguish