D
On November 5th, 1872, the Mary Celeste left New York to sail to Italy. The captain, his wife and daughter and seven sailors were on board. But something terrible happened. The captain of another ship found the Mary Celeste floating in the middle of the sea on December 4th, 1872. The captain, his family and the sailors were not on the ship and were never found.
What happened? Why did the sailors and passengers leave the ship? The Mary Celeste was not broken. Everything was good. There was no fighting, no fire and no smoke sign. There was still plenty of food and drinking water left. There were signs that the captain, his family and the sailors had left the ship in a hurry. We could tell all these because there was half-eaten food on the table. The sailors also left all their clothing behind. Even their shoes were beside their beds.
How and when did the people leave the ship? Some people said that the lifeboat was still on the ship but others said it was missing. The captain's diary was found on the ship and the last entry was made on November 24th. So, we could only guess that the happening time was between November 24th and December 4th.
An investigator( 调查者) went aboard the ship several times to search for the answers to all these questions. But he could not find any. No one else could solve the mystery.
()12. What was the Mary Celeste?
A. A train.
B. A plane.
C. A ship.
D. A captain.
()13. Why was the event mysterious?
A. The Mary Celeste was broken.
B. The Mary Celeste did not move in the slightest.
C. The people on the Mary Celeste could not be found.
D. Some food and clothing were left on the Mary Celeste.
()14. Which of the following was NOT found on the ship after the event?
A. Sign of fire.
B. Food.
C. Clothing.
D. The captain's diary.
()15. Why is the event called a mystery?
A. The lifeboat was missing.
B. Everyone left the Mary Celeste.
C. The Mary Celeste was not made of wood.
D. The captain's diary was found on the ship.

12. C
13. C
14. A
15. B