听下面一段独白,回答以下小题。
17. What has happened to South Howe Broch?
A.It has completely disappeared. |
B.It has been falling into the sea. |
C.It has been protected by a sea wall. |
18. Which of the following sites has been badly affected by severe weather events?
A.Midhowe Broch. | B.The Orkney Islands. | C.The University of the Highlands and Islands. |
19. Which period does the Midhowe Broch belong to?
A.The Iron Age. | B.Viking rule. | C.The Middle Ages. |
20. What does the passage mainly talk about?
A.Climate has greatly changed in Scotland. |
B.Climate change threatens Scottish historical structures. |
C.Ancient British structures remain after severe climate change. |