C．Wasting time with soap operas and computer games or discos.

D．

Doing community services by helping the old or the sick in hospitals.

3

．What can we learn from the letter?

A．The writer of the letter is doing some part­time jobs.

B．An article against teenagers' doing part­time jobs was published.

C．Teenagers of the time are not doing the right thing.

D．The writer of the letter is a teenager from a single­parent family.