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 spiders have eight eyes and ____ legs.
answer:
eight


question:
Irrigation can increase land productivity by three to ____ times, especially in the north.
answer:
seven


question:
Thunderstorms produce ____ types of wind.
answer:

two