Choose the answer among A, B, C, D to complete each of the sentences below:
Prices of flats ________ from a few thousand to millions of dollars.
A.vary
B.differ
C.fluctuate
D.change

Choose the answer among A, B, C, D to complete each of the sentences below:
It was difficult to guess what her ________ to the news would be.
A.capital
B.feelings
C.reaction
D.opinion

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Shortly after receiving her gold medal, the Olympic champion answered questions at the press _____.
A.seminar
B.assembly
C.conference
D.discussion

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
"Do you think that reducing class sizes would _______ standards in our school?"A.pull
B.rise
C.raise
D.boost

Choose the answer among A, B, C, D to complete each of the sentences below:
The average, ________watches television for about 15 hours a week.
A.spectator
B.audience
C.observer
D.viewer

Choose the answer among A, B, C, D to complete each of the sentences below:
When someone is down on their ____, friends are not easy to find.
A.merit
B.mood
C.fortune
D.luck

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
There is a growing tendency among singers to _____ some famous singers.
A.reflect
B.follow
C.pursue
D.imitate

Choose the answer among A, B, C, D to complete each of the sentences below:
Modem farming methods can have an adverse ______ on the environment.
A.effectiveness
B.effectively
C.effect
D.effective

Choose the answer among A, B, C, D to complete each of the sentences below:
The ____ of the Internet has played an important part in the development of communication.
A.(3) invention
B.(4) display
C.(2) occurrence
D.(1) research

Choose the answer among A, B, C, D to complete each of the sentences below:
500 years ago, the average human ________ was about 40 years.
A.life cycle
B.life length
C.lifetime
D.lifespan