.--- ______,he knows a lot of things.
32. The cost of living in Glasgow is among the lowest in Britain, ______ the quality of life is probably one of the highest.
31. ______ I really don’t like art, I find his work impressive.
30. He was told that it would be at least three more months ______ he could recover and return to work.
29. The field research will take Joan and Paul about five months; it will be a long time ______ we meet them again.
28.“When did he leave the classroom?” “He left _______ you turned back to write on the blackboard.”