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]: Lobelia Take ____ capsules after three meals each day.
[EX A]: two

[EX Q]: Some botanists recognise ____ botanical varieties.
[EX A]: two

[EX Q]: Female mammals have ____ X chromosomes.
[EX A]:
two