I will have citizenship test on Thursday, and want to prepare all the required document for interview.
Here's what I will bring:
1. citizenship application
2. NOA 2016
3. Original passport since landed
4. Apartment rental receipt
5. PR card
6. Original VOS replacing COPR (I lost copr and submitted VOS instead)
Best of luck for test definitely study the book 3 times at least n then do online practice test. I got 19 out of 20 but some questions were really tricky so read the questions thoroughly. above mentioned doc's are enough. they will pretty much check the id's test letter n passport interview not even 15 min. depends on what you have on file.