instruction:
Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
question:
Human feet bear average ____ to six hundreds tons of weight everyday.
answer:
five


question:
Fish kills can occur when oxygen is less than ____ ppm.
answer:
three


question:
Infertility is a disease that affects approximately ____ in ten couples worldwide.
answer:

one


