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]: Rabbits have ____ incisors in the upper jaw where rodents have only two.
[A]: four


[Q]: Medial moraine is formed from ____ lateral moraines.
[A]: two


[Q]: International trade is a ____ way street.
[A]:
two