1. Since "ayer" means yesterday, this statement is asking you to use the past tense of "sacar", which is "saco" if you are describing he/she (ella/el)
2. The statement is a general statement and is not describing the past nor the future, so the present tense of "ir" is used to describe he/she (ella/el), in this case being "va" as he <em>goes</em>
3. Past tense is being used; same reason as #1 (iban is the past tense when describing they/them)
4. Past tense b/c of "viernes pasado"; describing yourself
5. Past tense b/c of "antenoche"; describing "you"
6. Hace is the present tense of hacer when describing a formal "you"
