A.regards
B.mails
C.posts
D.sends

A.elsewhere
B.wherever
C.where
D.whereas

A.matters
B.things
C.fields
D.items

A.interfere
B.integration
C.exchange
D.mixture

A.interesting
B.stressful
C.free
D.easy

A.interesting
B.stressful
C.free
D.easy

A.way
B.law
C.rule
D.policy

A.way
B.law
C.rule
D.policy

A.and
B.or
C.not
D.nor

A.of
B.in
C.about
D.for