37. they play (table tennis) in their free time.
⟶ Which sports do they play in their free time?
38. My brother goes jogging (twice a week)
⟶ How often does your brother go jogging?
39. the weight lifter is not light.
⟶ The weight lifter is heavy.
40. Let's play volleyball tomorrow afternoon.
⟶ How about playing volleyball tomorrow afternoon?