Change the voice: "Wash your face."

Let your face be washed.

Let your face will be washed.

Your face washed.

None of these

Active Voice (Imperative):

Structure: Verb (base form) + object

Example: "Wash your face."

Passive Voice (Imperative):

Structure: Let + object + be + past participle (V3)

Example: "Let your face be washed".