Tú sabes muy bien que lo ..... tu hermana y no yo.
-
hizo
-
hiciera
-
hice
-
hicimos
A
Correct answer
Explanation
The sentence structure 'Tú sabes que lo _____ tu hermana' indicates who performed the action. The subject is 'tu hermana' (your sister), which is third person singular, so the verb must be 'hizo' (she did/it). The tú form refers to 'sabes', not 'hizo'.