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:
China has about one in ____ of all smokers in the world.
answer:
four


question:
Sapsuckers are a group of ____ species known for literally drinking the sap of trees.
answer:
four


question:
Frogs require from four to ____ years to reach maturity.
answer:

eight