Questions 19 to 21 are based on the passage you have just heard
[单选题]
A.Social media addiction is a threat to our health
B.Too many people are addicted to smartphones
C.Addiction to computer games is a disease
D.Computer games can be rather addictive
[单选题]
A.They prioritize their favored activity over what they should do
B.They do their favored activity whenever and wherever possible
C.They are unaware of the damage their behavior is doing to them
D.They are unable to get rid of their addiction without professional help
[单选题]
A.It may be less damaging than previously believed
B.There will never be agreement on its harm to people
C.It may prove to be beneficial to developing creativity
D.There is not enough evidence to classify it as a disease