Mark was a student at this university from 1999 to 2003, ____ , he studied very hard and was made Chairman of the Students' Union.
17. ________ the grandparents love the children, they are strict with them.
16. _______ the punishment was unjust, he accepted it without complaint.
15. He is better than _______ I last visited him.
14. Why do you want a new job ____ you’ve got such a good one already?
13. Don’t play by the river _______ you fall in and drown!