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.fluctuate
B.change
C.vary
D.differ

Choose the answer among A, B, C, D to complete each of the sentences below:
A trust employee was discovered to have ________ confidential plans to a competing company.
A.leaked
B.spread
C.stolen
D.rumored

Choose the answer among A, B, C, D to complete each of the sentences below:
The discovery was a major___for research workers.
A.breakthrough
B.break-in
C.breakout
D.breakdown

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 length
B.lifetime
C.life cycle
D.lifespan

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:
Flooding in April is an unusual ________ in this are
A.occur
B.occurred
C.occurring
D.occurrence

Choose the word or phrase A, B, C or D that best completes the sentence or substitutes for the underlined word or phrase.
He ______ us for hours with his stories and jokes.
A.raised
B.supported
C.regarded
D.entertained

Choose the answer among A, B, C, D to complete each of the sentences below:
He has a very outgoing ________ and makes friends very easily.
A.personality
B.personage
C.personal
D.person

Choose the answer among A, B, C, D to complete each of the sentences below:
He ________ to the spot where the house used to stand.
A.pointed
B.showed
C.glanced
D.directed

Choose the answer among A, B, C, D to complete each of the sentences below:
The process of ___ Jackson from a talented teenager into a franchise player.
 
A.altering
B.converting
C.exchanging
D.transforming