Answers to the exercises in the part of completing the sentences with the given words in their proper forms:

1 active 2 aged 3 amazing 4 American 5 amusing 6 attractive 7 Australian 8 automatic 9 busy 10 Canadian 11 careful 12 changeable 13 chemical 14 cloudy 15 complete 16 crowded 17 dangerous 18 detective 19 different 20 difficult 21 dirty 22 electric 23 enjoyable 24 following 25 foolish 26 foreign 27 freezing 28 friendly 29 gentle 30 golden 31 harmful 32 helpful 33 homeless 34 hungry 35 medical 36 national 37 natural 38 necessary 39

official 40 patient 41 physical 42 plastic 43 powerful 44 retired 45 snowy 46 soft 47 surprised 48 terrible 49 thankful 50 traditional 51 useful 52 various 53 western

Answers to the exercises in thepart of choosing the best answers:

1 C 2 B 3 B 4 A 5 B 6 D 7 B 8 B 9 C 10 A 11 C 12 A 13 D 14 D 15 A 16 B 17 C 18 C 19 D 20 D 21 B 22 C 23 A 24 A 25 B 26 B 27 B 28 B 29 B 30 B 31 A 32 B 33 B 34 B 35 A 36 C 37 A 38 A 39 A 40 B