B. Is the answer I just did and I got right
A because they all have the -ing
Next September, it will be eight years since we got married.
By next September, we will be married for eight years.
I will finish my coffee first and then I will have a shower.
I will have a shower as soon as I finish my coffee.
Yesterday, I ate sushi for the very first time.
I had never eaten sushi until yesterday
hope that helps :)