Questions 12 to 15 are based on the conversation you have just heard.

A．They may have to continue to work in old age.
B．They may have nobody to depend on in the future.
C．They may regret the time they wasted.
D．They may have fewer job opportunities.

A．Forbidding students to take food out of the restaurant.
B．Requesting customers to pay before taking the food.
C．Asking customers to leave their bags on the counters.
D．Allowing only two students to enter at a time.