With the weather getting colder, visitors from Australia spent their days in Beijing.　A.

With the weather getting colder, visitors from Australia spent their days in Beijing.
　
A. a few last　
B. last few 　　　
C. few last 　　　
D. last a few

A. a few last　(答案→)B. last few 　　　C. few last 　　　D. last a few解析：考查限定词的用法。last是前位限定词，a few中a是前位限定词，few是中位限定词。根据语法规则，一个定语中只能有一个前位限定词、一个中位限定词和一个后位限定词。（注意是限定词不是形容词）因此只能留下表意的last，而去掉a。

感谢回答，我学习了