In these sentences, "get" and forms of "to be" seem to be interchangeable. I prefer the forms of "to be," but to use forms of "get" in sentences is okay.
Read the examples here:
http://www.learnamericanenglishonline.com/Green%20Level/G24_get_+_past_participle.html
please tell me how can we Use of get + past participle and identify in sentence?
I got injured.
He will get married.
Please tell me by example.
2 answers
This webpage has really good explanations and examples, too.
http://english.stackexchange.com/questions/3072/why-is-to-get-sometimes-used-where-to-be-could-be-used
http://english.stackexchange.com/questions/3072/why-is-to-get-sometimes-used-where-to-be-could-be-used