单项选择题


Questions 11 to 18 are based on the conversation yon have just heard.

A．How primitive people used flags.
B．What the ancient means of communication was.
C．Why the torch towers were built.
D．How the Great Wall came into being.
<上一题 目录 下一题>
热门 试题

填空题
candidates
填空题
The only sounds are bird calls and the soft noise __________________________ (当水缓缓推动草时草所发出的).
相关试题