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

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

[EX Q]: Most people are legally drunk after _ or two drinks.
[EX A]: one

[EX Q]: Fiber glass contains _ chemicals that can corrode pipes and wiring.
[EX A]:
no