Here is a grammar exercise I have been trying to get to grips with. Does anyone have any advice re. how to practise this structure? I am practising for an up-coming exam and unfortunately have to catch up on my own now. (I was on leave due to illness). I hope you don´t mind me posting these questions here. Let me know if this is a bother to anyone.
Here goes then! This is the first question about the hito structure at the end which I don´t get. This is from a translation exercise:
1. biiru de youmeina kuni (beer from a famous country?)
2. sugu ni shirasetakatta nyusu.( I don´t get this construction)
There are dozens of variations of these and I find all the exercises rather confusing.
Or vice versa, this would be the same construction for these, no?
1. someone who checked the problem
2. someone who gets angry quickly
3. How do I combine something? Is this with the T-form? For instance: someone who is sitting and smoking.
4. A song which our guest sang beautifully
Do you know of any sites where I can practice some grammar stuctures such as these?
I subscribed, hoping there would be something in the grammar bank but there is hardly anything there.

Another question ( I hope I am allowed to ask all this in one post!!!):
Are there rules for combining sentences with with particles? I went through all my books but there is info scattered everywhere and no bundled rules. Here is what I mean:
1. If I want to join denwa shimasu/uchi wo demasu with mae ni
2. Or maybe kono isu wa irimasen/sutetekudasai with toki wa
Obviously, I mean other particles, too. ( ato de, toki ni, etc.). I hope you understand my question!!!
I know you are all quite advanced here, so apologies for boring/ bothering you with this stuff but I desperately wantto keep up and catch up all the grammar I missed last term. Not an easy task without any help, but I want to try anyway.
Thank you all.