hohad expected how it would go with his son, had a great worry ____ his mind.

The first time for everything is always the most exciting one_____ it is your first day in a new job or going on a first date, you will always remember those “first” times.[ ]

This is an unpleasant subject_ ____ we might argue for a long while.[ ]

Sarah hopes to become a friend of_______shares her interests.

Too much drinking will do________to your health；you should take the doctor’s advice.