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: Earthquakes are most frequent where ____ or more plates meet.

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

A: four
****
Q: Most babies double their birthweight by four to ____ months.

A:
five
****