(Yes, I'm British, in Britain)
I have some suggestions: 'a partridge in a pear tree', and 'the straw that broke the camel's back'
I have just one question - why bull in the china shop? I understand the meaning, but why bull? In Czech, we have "elephants in china" :)
Hard though, because in Sweden we use other animals for some of the sayings...
You scored 19/20 = 95%
This beats or equals 80.3% of test takers
The average score is 16
Your high score is 19