instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Cats nurse their kittens up to _ weeks long.
answer:
eight


question:
Echocardiography demonstrates in clear, graphic fashion the _ cardiac chambers and four valves.
answer:
four


question:
Acquaintance rape is _ less serious a crime than a rape which occurs between strangers.
answer:

no