b) Now answer the questions.

Answers to the questions:

1. What is Jo's dad doing?
   Jo's dad is installing an alarm system.
2. What problems do the burglars cause?
   The burglars cause problems by stealing things from people's houses.
3. What advice does Jo give Dan?
   Jo advises Dan to be careful with his keys, not to lose them, and not to leave an open window. She also implies he should install an alarm.