are my answers correct?

[Teia]

Hi

1. Jane is busy .... for our anniversary celebration.
a] to write b] writing
I think {b} is correct

2.They regretted going there before the week .... out.
a] was b] had been

In my opinion {a} is correct.

Thank you very much in advance.

[Anglika]

Both are correct

[Teia]

Thank you very much Anglika