TASK DEFINITION: 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.
PROBLEM: Some tropical species have ____ or three generations per year.

SOLUTION: two

PROBLEM: Cattle can have up to six to ____ years of grazing, after which a scrub savannah grows up.

SOLUTION: ten

PROBLEM: Normal mares produce approximately ____ liters of colostrum.

SOLUTION:
two