A.at
B.of
C.to
D.on

A.situation
B.moment
C.event
D.case

A.
B.
C.
D.

A.
B.
C.
D.

A.
B.
C.
D.

A.safe
B.savings
C.safely
D.save

A.although
B.and
C.however
D.despite

A.although
B.and
C.however
D.despite

A.Moreover
B.However
C.Instead
D.Therefore

A.which
B.whom
C.who
D.what