听下面一段独白,回答以下小题。
14. How many natural Christmas trees did Americans buy in 2016?
A.Less than 35 million trees. | B.More than 10 million trees. |
C.More than 24 million trees. | D.Less than 24 million trees. |
15. What happens to most real Christmas trees after the Christmas season?
A.They are grown once again. | B.They are delivered to a tree farm. |
C.They are safely stored away. | D.They are thrown away. |
16. What happens to most artificial Christmas trees after the Christmas season?
A.They are moved to a landfill. | B.They are reused next year. |
C.They are cut into pieces. | D.They are exchanged for real trees. |