instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Blood pressure is really _ measurements, systolic and diastolic.
answer:
two


question:
Ozone leaves _ by-products except pure oxygen.
answer:
no


question:
Skunks tear out divots of turf that are three to _ inches in diameter.
answer:

six