Question

I_____finished my homework before going to school.(should, can,may, will, must)​

Answer 1

Answer:

would have ...............is the Ans

Answer 2

Answer:

hola mate hope my answer finds you in the pink of your health---

actually the question is wrong ;after a modal the verb always ocurrs in it's root form, but, here you have put it's 2nd form . However, a/q, the answer is looking to be must.

hope this helps you

be happy

keep smiling