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.

Most orthoptists work ____ hours a day, four or five days a week.
eight

People often have to wait between three and ____ years for an organ especially for a liver.
five

Cleavage is good in ____ directions at right angles.

two

