CONGRATS on your marriage. Wish U guys happy married life together.
Since we all are facing COVID-19 situation , there is no need to worry about not having many guests or gatherings.
Q3 =Explain same way who knows whom here, all combined.
Q4= Explain as you did here.
Q7= Here both of you can write as this:- We lived in the same city from xxx to xxx. We met each other daily. here you can explain a combined story. You already answered correctly , so briefly explain all here.
Q9 Again explain briefly COVID-9 situations why you could not do huge celebrations.
Hope it is helpful