It’s not good for people __________ waste water (污水) into the river.
The workers are all tired, but ________ of them stopped ________ a rest.
Mrs. Green ________ people what colours to wear.
The students hardly have any spare time for their hobbies, ________?
While my mother _______ in the kitchen, I was watering the flowers in the garden
Tommy is ________ not to get angry easily.