Questions 19 to 22 are based on the conversation you have just heard.

A．He saves much money because he needn’t drive car or take bus.
B．He doesn’t have to get up on time every day.
C．He can easily earn much money.
D．He has a lot of time to cook a meal at home.

A．They moved from one place to another.
B．They came from Indonesia.
C．They have left us information about their migrations.
D．They preserved their sagas and legends.