In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[Q]: Hoatzin has typical foot with _ toes forwards and one backwards.
[A]: three


[Q]: Woodchucks can dig up to three entrances to _ den.
[A]: one


[Q]: Some homes have _ or even four computers from which they can access the Internet.
[A]:
three