TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Some seeds can remain dormant for up to _ years.

SOLUTION: two

PROBLEM: White sturgeon inhabit _ large river systems, all on the western coast of North America.

SOLUTION: three

PROBLEM: Smokeless tobacco is used in _ common forms.

SOLUTION:
two