Read the following passage and answer the questions
Rita is from Canada, but she lives in Ho Chi Minh City. She works in a hospital. She has a car and usually drives to work. She leaves home at eight and starts work at half past eight. She likes her job, but she likes the weekend, too. On Saturdays, she plays tennis or goes swimming. She sometimes goes jogging, too. On Sunday evenings, she always eats in a restaurant with her friends.
When does she play tennis?