【B19】
A. discuss
B. change
C. quarrel
D. complain
Most parents are reluctant to use the spyware because of
A. the difficulty of handling the spyware.
B. the concern of violating their children's privacy.
C. worries of being discovered by their children.
D. no easy access to the spyware.
What's the meaning of the word "predator" in the 12th paragraph？
A. Chatter.
B. Teenager.
C. Dangerous person.
D. On-line friend.
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