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]: All crabs have ____ pair of chelipeds and four pairs of walking legs .
[A]: one


[Q]: White men are almost ____ times more likely to develop cancer of the testicles than are black men.
[A]: five


[Q]: Males have ____ reproductive organs called hemipenes.
[A]:
two