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:
Most insects have one or ____ pairs of wings.
answer:
two


question:
Human malaria is caused by ____ species of Plasmodium . .
answer:
four


question:
China is reportedly in the top ____ nations in industrial output.
answer:

ten