Ex 1
1 OK / 2 course / 3 'll / 4 had / 5 could / 6 if / 7 can / 8 mind / 9 can / 10 rather / 11 have / 12 can
Ex 2
1 have to / 2 can't / 3 didn't have to / 4 can't / 5 closes / 6 Of course not / 7 I'll make / 8 don't / will
Ex 6
1d / 2a / 3f / 4b / 5c / 6h / 7e / 8g
Ex 7
education: an approach, compulsory, graduate, a textbook
places: an army base, a car plant, a desert, a square
cheating: claim, lie, pretend, resign
Ex 8
1 computing / 2 optional / 3 behaviour / 4 traditional / 5 qualifications / 6 performance / 7 historical / 8 dangerous / 9 industrial / 10 financial
Ex 9
1 tiny / 2 fields / 3 farm / 4 primary / 5 secondary / 6 residence / 7 state / 8 fees / 9 treat / 10 culture / 11 coast / 12 ocean