A.absence
B.duty
C.want
D.need

A.a high-rate
B.a high proportion
C.a high tendency
D.a great level

A.hurry
B.jump
C.rush
D.run

A.bring
B.make
C.give
D.do

A.being
B.at risk
C.in danger of
D.endangered

A.determine
B.serve
C.involve
D.promote

A.competing
B.establishing
C.advancing
D.growing

A.successful
B.unsuccessful
C.success
D.successive

A.pressure
B.great stress
C.stressed
D.stressful

A.In front
B.In spite
C.In terms
D.Regardless