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]: Early childhood refers to the time period between birth and ____ years of age.
[A]: eight


[Q]: Sharks have ____ gill slits on each side of the head.
[A]: five


[Q]: Meerkats can have one to ____ babies at one time.
[A]:
seven