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.

[EX Q]: Water consists of ____ hydrogen and one oxygen atom.
[EX A]: two

[EX Q]: Corporate mergers occur when ____ companies combine.
[EX A]: two

[EX Q]: Multicellular organisms are made up of ____ or more cells.
[EX A]:
two