Why did Washington order trenches dug?

To move artillery.

Explanation:

Washington had trenches dug to help move the artillery(heavy weapons) closer.

b). (sounds as the best answer)

the big question intentionally left by halloween 2018 is whether michael myers is really dead or not. the last time we see him, michael is trapped in the cage just as laurie's house starts to burn. however, when the film cut back to the flames, the room appears empty.

explanation:

hope this and mark me as brainliest if you want.