I went to Beijing with the army last year and settled in Beijing as soon as the child was born. My wife will jump ship and return to other provinces next year. Can my children and I stay in Beijing?

You have been in Beijing with the army for less than four years, and your wife can't get into Beijing if she changes jobs. But if she changes jobs and goes to other places, she can choose not to move with her family, and of course you and your children can stay in Beijing.

As for whether you can come back to take the college entrance examination, you should consult the education department in Beijing to see if it is feasible. In many places, it is required that local high school students can take the local college entrance examination, mainly to avoid the problem of immigration in the college entrance examination.