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

[EX Q]: Giant pandas move on all ____ legs.
[EX A]: four

[EX Q]: Plants are at roughly the ____ leaf stage.
[EX A]:
two