He began to take political science_____ only when he left school.
Women _______ drink more than two cups of coffee a day have a greater chance of having heart disease than those ________ don’t.
If a shop has chairs __________ women can park their men, women will spend more time in the shop.
Helen was much kinder to her youngest son than to the others, __________, of course, made the others envy him.
The English play __________ my students acted at the New Year’s party was a great success.
I will never forget the day _______ I came to my university and the day ______ I spent in a new city.