Bill was doing a lot of physical exercise to build up his_______.
#7459
A
ability
B
force
C
strength
D
mind
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Bob has learned a lot from his _______ of working in different gyms and is now an expert on all kinds of _______. 
#6039
A
experience; equipment
B
experience; equipments
C
experiences; equipment
D
experiences; equipments
 Judging by her _______, Jane must be a southerner.
#6413
A
pronunciation
B
accent
C
voice
D
sound