Exercise 73
1. statue 2. owner 3. station 4. dog 5. professor

Exercise 74
1. customers 2. feet 3. shoes 4. pairs 5. size

Exercise 75
1. friends 2. game 3. reading 4. computer 5. hat

Exercise 76
1. girl 2. team 3. football 4. parents 5. club

Exercise 77
1. circus 2. clown 3. jobs 4. brothers 5. house

Exercise 78
1. course 2. food 3. cooking 4. adults 5. children

Exercise 79
1. mammals 2. underwater 3. whales 4. sleep 5. surface

Exercise 80
1. animals 2. transmitted 3. symptoms 4. scientists 5. children

Exercise 81
1. pieces 2. player 3. king 4. mind 5. Clock

Exercise 82
1. boxes 2. cups 3. birthdays 4. market 5. flowers

Exercise 83
1. breakfast 2. school 3. morning 4. homework 5. dinner

Exercise 84
1. bear 2. run 3. kinds 4. pandas 5. food

Exercise 85
1. safe 2. tea 3. people 4. caffeine 5. drink 6. sleeplessness

Exercise 86
1. common 2. dolphins 3. discover 4. people 5. kill 6. creatures

Exercise 87
1. president 2. children 3. political 4. letters 5. family 6. life

Exercise 88
1. sate 2. tests 3. blindfold 4. perceive 5. ability

Exercise 89
1. jeans 2. pants 3. been 4. sold 5. demand(s) 6. designed

Exercise 90
1. built 2. builders 3. stones 4. brought 5. stonehenge 6. observatory

Exercise 91
1. century 2. labaratory 3. lichens 4. world S. half 6. chemical

Exercise 92
1. moon 2. place 3. earth 4. atmosphere S. air/atmosphere 6. live