Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.

All of the following countries have strict rules about naming children EXCEPT（）

A．By helicopter.
B．By boat.
C．By radio contact.
D．By a search team.

A．Linda is Jane’s friend.
B．Mark is Jane’s boyfriend.
C．John is Jane’s boyfriend.
D．Mark and John are good friends.

A．On supplies they brought with them.
B．On supplies sent to them by rescue teams.
C．On supplies left at the military base.
D．Not mentioned in the passage.