Select all contexts where a some-series form is the conventional choice described by the rule inventory.
A neutral negative: "We didn't buy ___ batteries."
An affirmative report: "We bought ___ batteries."✓Richtige Antwort
An open question: "Did you buy ___ batteries?"
An offer: "Would you like ___ biscuits?"✓Richtige Antwort
Erklärung
Some fits an affirmative existence statement and a genuine offer that anticipates acceptance. Neutral negatives and open questions normally take any, so the other contexts do not support the requested some-series choice.