Отметь те слова которые во множиственым числе ball, cools, boy, girls, fun, cars, book, games, pc, schools, laboratory, schooldesks, inventory, cat, dogs.

Girls , cars, games , schools, schooldesks , dogs

Где окончание s.
Например:book-1 книга,books -много книг.

cools,girls,cars,games,
schools, schooldesk, dogs.