If you are about Australian cities just read the book written by Dr Johnson.A. interest

问题补充：

If you are about Australian cities, just read the book written by Dr Johnson.

A. interested

B. anxious

C. upset

D. curious

答案：

A. interested

B. anxious

C. upset

(答案→)D. curious

解析：A. interested感兴趣的 B. anxious焦虑的 C. upset沮丧的 D. curious好奇的；句意：如果你对澳大利亚的城市感到好奇，就读一下这本由约翰逊博士所写的书吧，be curious about sth对…感到好奇，be interested in对…感兴趣的，故选D