instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Diffusion occurs between the capillaries of the _ blood supplies.
answer:
two


question:
Babies usually wet the diaper at least _ times each day.
answer:
six


question:
Some women have _ periods at all, which makes it hard to tell if pregnancy has occurred.
answer:

no