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: Prokaryotes mean they have ____ nucleus in which they store genetic material.

SOLUTION: no

PROBLEM: Theobroma oil can exist in four different polymorphic forms of which only ____ is stable.

SOLUTION: one

PROBLEM: Ribosomes are small, irregularly shaped particles, composed of ____ subunits.

SOLUTION:
two