Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions from 3 to 4.

A.intervention
B.necessary
C.intellectual
D.productivity

Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions from 3 to 4.

A.nation
B.process
C.themselves
D.provide

Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from pronunciation in each of the following questions from 1 to 2.

A.difficulties
B.enriches
C.classes
D.enlarges

Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from pronunciation in each of the following questions from 1 to 2.

A.tombs
B.lambs
C.brakes
D.invites

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 6 to 30.
There is one person to _____ I owe more than I can say.
A.whom
B.who
C.that
D.whose

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 6 to 30.
I love _____films but I seldom find time to go the cinema
A.see
B.saw
C.seen 
D.seeing

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 6 to 30.
I could hear voices but I couldn’t _____ what they were saying.
A.turn up
B.bring about
C.make out
D.try out

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 6 to 30.
The higher the content of carbon dioxide in the air is, _____.
A.the more heat it retains
B.the heat it retains more
C.it retains the more heat
D.more heat it retains

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 6 to 30.
Petrol is _____ it used to.
A.twice as expensive as
B.twice expensive more than
C.twice more than expensive
D.more expensive than twice

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 6 to 30.
 It gets _____ to understand what that professor has explained
A.the more difficult 
B.more difficult than
C.difficult more and more
D.more and more difficult