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.

Q: Malaria kills up to ____ million people each year.

A: two
****
Q: Spermatogenesis creates ____ sperm of equal size.

A: four
****
Q: Coho return to freshwater between the ages of three and ____ to spawn.

A:
four
****