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.

[Q]: Girls have ____ ovaries.
[A]: two


[Q]: Spiders have eight jointed legs and ____ body parts.
[A]: two


[Q]: Osteoporosis is a silent, painless disease showing ____ symptoms until it has set in.
[A]:
no