Question:Was Joana’s observation correct? Why?

This is the story:
Joana and her family moved from the city to live with her father who was assigned in the province. Ever since they moved, she continued her education in a private school for ladies in the nearby town.

One morning, she was studying alone under the shade of a mango tree when a girl from her class approached her. She was Ruth, her seatmate. Ruth sat down beside Joana quietly and watched her for a while. Joana closed her book and said,

“It’s about time that you joined me here.” (