Question

in what sense toto the monkey was pretty?

Answer 1

Toto the monkey is pretty In this way the grandfather likes toto's naughtiness and he describes toto's naughty actions as his preetiness

Answer 2

Tito’s bright eyes sparkled with mischief beneath deep-set eye brows. His pearly white teeth often displayed a smile that had the innocence of a child yet there was an underlined tinge of naughtiness and mischievousness.