All graduates are supposed to read the chapters which are _____ to the post-war period in that area.
A. regarding
B. pertinent
C. concerning
D. respective
The local people are very keen to _____ their customs and dialect.
A. converse
B. perverse
C. conserve
D. preserve
It is revealed that a package of economic sanction is to be _____ against that country.
A. exercised
B. enhanced
C. legislated
D. enacted
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