A.worked
B.arranged
C.engaged
D.involved

A.recalled
B.reckoned
C.redirected
D.replaced

A.slender
B.slight
C.single
D.simple

A.on which
B.in which
C.for hich
D.with which

A.toargue
B.（in）arguing
C.argue
D.argued

A.is
B.were
C.will be
D.has been

A.why
B.that
C.where
D.as

A.leading
B.which led
C.leads
D.which leading

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

A.drinking
B.not to be drunk
C.to drink
D.having

A.large watchers
B.large viewers
C.big listeners
D.huge audiences