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]: Plants grow up to ____ feet tall and spread to about three feet.
[A]: three


[Q]: HOD usually shows up as an acute lameness, often seeming to affect all ____ legs simultaneously.
[A]: four


[Q]: Rats come in ____ varieties.
[A]:
two