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.

[EX Q]: Some species bear living offspring only every three to ____ years.
[EX A]: five

[EX Q]: Scullers use ____ oars, sweep oarsmen pull just one.
[EX A]: two

[EX Q]: Modern technology makes it possible to examine and treat infants even under ____ months of age.
[EX A]:
six