Part 1 Grammar 1 a 2 b 3 b 4 c 5 b 6 a 7 b 8 a 9 b 10 b 11 c 12 c 13 b 14 b 15 c 16 a 17 b 18 a 19 b 20 a 21 c 22 a 23 b 24 a 25 b 26 b 27 a 28 a 29 b 30 c