Experts insist that packets of cigarettes come with a health warning ______ to them.
The young man got up immediately as the woman got on the bus and let her _______ his seat.
The question which will be discussed next week has something ________our salary.
It’s obvious that her refusing to see a doctor has ______ her illness worsening.
_________ his friend when they met on the street made his friend very upset.
_________ to the sunlight for a long time does harm to one’s skin.