A．arrange a face-to-face meeting for their child and his/her friends on the net
B．never give out the personal information like home address in a public message
C．treat personal computers as electronic babysitters of their child
D．be indifferent to any offers that even don’t involve them sending credit-card information

A．Beer was less popular than the wedding ceremony and horse race.
B．The Munich beer festival is held every two years.
C．When a war or epidemic breaks out, people will still celebrate the Oktoberfest.
D．The Oktoberfest actually takes place in September.