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: Crustaceans have ____ pairs of antennae.

A: two
****
Q: Light chains exist in ____ classes, lambda and kappa.

A: two
****
Q: Parallel ports use eight wires to send eight bits in parallel at ____ time.

A:
one
****