Pasive voice of 'get out' will be?

please just help me

This is not a simple question to answer. The verb "get out" is rarely used in the passive.

In order to consciously write a passive sentence, you need to be able to phrase the whole thought in active voice first. Examples:

Active: He hit the baseball.
Passive: The baseball was hit by him.

Active: They did their own homework.
Passive: Their homework was done by them alone.

Notice that the direct object in an active sentence becomes the subject in a passive sentence.

http://www.talkenglish.com/grammar/active-passive-voice.aspx

http://www.englishpage.com/verbpage/activepassive.html

--------------
So if this is your active sentence, how will you rewrite it as a passive?

Active: He got out of the cave quickly.
Passive: The cave ______________________.

I read a lot of interesting information, rules and examples of passive voice on the website Englishpapa. I studied at the courses of this English language school, an excellent school for acquiring knowledge and a prospect for the future, to open doors to new opportunities

The passive voice of "get out" would be "be gotten out" or "be got out." To form the passive voice, you generally use a form of the verb "be" plus the past participle of the main verb. In this case, the past participle of "get" is "gotten" (or "got" in some varieties of English). So, to convert "get out" into the passive voice, you would say "be gotten out" or "be got out."