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: Eye contact is important for ____ reasons.

A: two
****
Q: Most butterflies live only two to ____ weeks.

A: four
****
Q: Healthy lungs are an intricate weave of more than ____ hundred million tiny air sacs.

A:
three
****