instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Black people live about _ fewer years, on average, than white people do.
answer:
six


question:
All imaginary numbers are complex numbers with _ for the real part.
answer:
zero


question:
Most people develop antibodies within three months and some can take up to _ months.
answer:

six