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

[EX Q]: Diarrhea is an illness that kills _ and one-half million children per year.
[EX A]: three

[EX Q]: Liquids usually descend in three to five seconds, and solids in _ to twenty seconds.
[EX A]: eight

[EX Q]: Television is so pervasive that many homes have _ or more sets.
[EX A]:
four