___________ (55)
A.performs
B.performing
C.perform
D.performed

___________ (51)
A.so
B.but
C.and
D.then

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A.determine
B.eventually
C.historian
D.threaten

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A.represented
B.biography
C.indirectly
D.entertainment

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A.combination
B.understand
C.scientific
D.astronomy

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A.employer
B.reunite
C.understand
D.recommend

___________ (50)
A.him
B.his
C.her
D.hers

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A.agricultural
B.international
C.philosophy
D.university

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A.measurement
B.information
C.economic
D.engineer

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A.enterprise
B.category
C.vacancy
D.contribute