A.break down
B.put away
C.take off
D.give up

A.danger
B.endanger
C.dangerously
D.dangerous

A.degree
B.licence
C.certificate
D.diploma

A.caught
B.fixed
C.lost
D.accustomed

A.glided
B.slipped
C.sailed
D.slid

A.hard
B.routine
C.simple
D.harmful

A.hard
B.routine
C.simple
D.harmful

A.boring
B.awful
C.dangerous
D.surprising

A.determined
B.changed
C.bold
D.hesitant

A.determined
B.changed
C.bold
D.hesitant