Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

[EX Q]: Naiads have ____ caudal filaments and external gills.
[EX A]: two

[EX Q]: Shock occurs when there are intense experiences and ____ defenses at all.
[EX A]: no

[EX Q]: Divorce affects one out of every ____ marriages today.
[EX A]:
four