Question

(two gentleman of verona) how u can say that the boys were willing workers

Answer 1

we can say this because they were ready to do anything in their capacity to earn money for their sister's speedy recovery .

Answer 2

The two boys worked quite hard.They were eager to work and work money by any healthy way. They helped the author and his companion a lot. They could bring them American cigarettes, suggest them a name of a good restaurant, book tickets for opera house and sell them wild strawberries.
Thus, these things indicate that boys were willing workers.