Questions 11 to 18 are based on the conversation you have just heard.

A．It’s not very relaxing.
B．It’s safer than driving.
C．It doesn’t cost very much.
D．It’s easy to drive.

A．More and more paper is being consumed nowadays.
B．Paper enables people to receive education more easily.
C．The invention of paper is of great significance to man.
D．Paper contributes a lot to the keeping of historical records.