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


question:
Coho usually live for ____ years and grow rapidly in their final year.
answer:
three


question:
Dengue has an incubation period of ____ to seven days after one is bitten by an infected mosquito.
answer:

five