Get through

Hello teachers,

I always have difficulty understaning and using idioms........!!
Here are some sentences using the idiom 'get through', but I'm not sure if they make sense to you. Could you please check them for me?
Also, I would appreciate it very much if you would correct my grammatical mistakes in these sentences.

'get through'

1. I hope I'm getting through to you, because this is a very important issue.

2. Do you have any idea how we get through this problem?

3. How was he able to get through his final examination without any preparation?

Thank you very much for your help in advance.

Candy

Hello Nona the brit,

Thanks for the reply.
(Because of my computer problems, I was not able to visit the website for a while.
I'm sorry for the late 'thank you'....)

Please let me ask you once again.
Do my original 3 sentences make sense to you? Do they sound natural to native English speakers?

Many thanks for your help in advance.
Candy

Hi Nona,

Thanks for your response!
Thank you again for your great help!