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]: Elephants also have four molars, ____ on the top and one on the bottom on both sides of the mouth.
[A]: one

[Q]: Electric power means no gas or oil to spill, and ____ pollution in the air.
[A]: no

[Q]: Credit cards illustrate the ____ faces of fast, financial fixes.
[A]:
two