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: Nymphs are less than ____ millimeters in size.

A: two
****
Q: Plants grow up to ____ feet tall and spread to about three feet.

A: three
****
Q: Bilingualism involves the ability to use ____ different languages successfully.

A:
two
****