Verb conjugation of "tenere" in Italian

I am asking you to give me a reply as soon as possible so that we can proceed. Have you ever tested the new version? Many users are waiting for it, and are sending me lots of emails about it.
The last sentence is the hardest in the entire series. Writing may bore some people, but it is considered the best training in language learning. It is a skill that can lift you from intermediate to advanced level. Do not neglect it.
Besides, what do you do for living? Where exactly do you live in Venezuela? Southern Germany is also very beautiful with the Alps. Can you understand my German? I would like to improve it.