Viết lại câu: Breathing is something we do automatically, so we rarely think about it

41. Breathing is something we do automatically, so we rarely think about it.
Because breathing.............
42. Stop wasting the water, or we won't have fresh water to use someday.
If we waste..............
43. We started writing to each other six years ago. We have ..............
44. The city council has banned traffic from the city centre.
Traffic has ..........
45. Georgia is a good pianist.
Georgia plays........