1) Frequently their renovation need to be completely redone.

Question

1 need
2 needed
3 were needing
4 will have been needing
5 needs

2)If we were teenagers at the time these licenses signified our passage to adulthood.
1 time these licenses
2 time, these licenses
3 time; these licenses
4 time. These licenses

3)Whether or not we have chosen to use our licenses since then. They remained of enormous value to us.
1 since then. They remain
2 since then, they remain
3 since then they remain
4 since then; they remain

Answer 1

I'll be glad to check your answers.

Answer 2

i think
1 is 2
2 is 2
3 is 2
are they correct?

Answer 3

Yes, they are all correct.

Answer 4

Thank you so much ^_^

Answer 5

You're very welcome.

Answer 6

needed (100% sure)
since then, they remain (100%)