----Would you permit me ______ here?---- Sorry. We don’t permit ______ here in the reading room.A. smoking, smoking B to smoke, to smokeC. smoking, to smoke D. to smoke; smoking
His father ________ for a week.
My mother is ill. I _______stay at home and look after her.
---Do you know the Frenchman? ---Yes. I ______him for two years.
They______ all their money, so they have to walk home.
Great changes_______ in the city, and a lot of factories_______.