Adverb placement

Decide where the adverb should be placed by choosing a number. Sometimes more than one
answer is correct:

1 I 2 went shopping 3 at the 4 mall 5. Yesterday
1 I 2 have 3 seen 4 any “Twilight” movies 5. Never
1 I 2 wonder 3 what the future 4 will 5 bring. Sometimes.
1 I’m 2 going 3 to Bali 4 on vacation 5. Next week.