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]: Llamas stand about ____ feet high at the shoulders.
[EX A]: four

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

[EX Q]: Some animals have only ____ or three chambers .
[EX A]:
two