Поделитесь своими знаниями, ответьте на вопрос:
What do you do? Read the sentences and choose the verb with the right form in Present Simple negative.Vetstreat people because they are animal doctors.A flight attendant let passengers walk around the plane while landing.Teacherswork night shifts because school starts in the morning and finishes in the afternoon.
1)serves
2)keep
3) checks