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]: Some niqabs have ____ or two holes for the eyes.
[EX A]: one

[EX Q]: Phylogenetic analyses confirm ____ mitochondrial mallard clades.
[EX A]: two

[EX Q]: Salvinia plants are floating ferns, there are only ____ species in the world.
[EX A]:
ten