根据用括号中所给单词适当形式填空。

小题1:It snows a lot in the ________(north)part of the country ?

小题2:What do you think about the air ________（pollute） in your hometown?

小题3:There is too much ____   ___ (rainy) in that area.

小题4:She seldom drives to work on _______ (fog) days.

小题5:Don’t be so____   ___ (nervously) .All the people here are friendly.

This is a photo ____ my uncle.            [ ]

A.on  

B. at  

C. in  

D. of