A.3,2.
B.6,4.
C.2,4.
D.4,8.

A.artificial
B.remarkable
C.smartphone
D.carrot

A.computer
B.command
C.complicated
D.communication

A.robot
B.controller
C.operator
D.global

A.advances
B.diseases
C.escapes
D.watches

A.danger
B.risk
C.chance
D.threat

A.danger
B.risk
C.chance
D.threat

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

A.interacts
B.interactive
C.interactional
D.interactions

A.applicant
B.applicable
C.applications
D.apply