(50) _____
A.changes
B.sentences
C.turns
D.sides

(47) _____
A.noticeable
B.visual
C.optical
D.obvious

(48) _____
A.helpful
B.essential
C.probable
D.successful

People believe new changes in the economy are ________ to take place.
A.bound
B.coming
C.gone
D.like

” George was in town last week.” ----“ ________ , we would have called her.
A.Had we known
B.We had known
C.If we had known
D.If we did know

Police are reported ________ found illegal drugs in a secret hiding place in the star’s home.
A.they have
B.having
C.to have
D.have had

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Books are still a cheap _______ to get knowledge and entertainment.
A.means
B.way
C.method
D.measure

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Fire engines and ambulances have _______ over other traffic.
A.prior
B.priority
C.before
D.precedence

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The trouble with James is that he never ______ on time for a meeting.
A.turns down
B.takes up
C.takes off
D.turns up

George is not enough intelligent to pass this economics class without help.
A.enough intelligent
B.to pass
C.economics
D.help