英文共同题名：Direct English

unit 55
　lesson 1 the detective's story
　lesson 2 editorial
　lesson 3 twice lucky chapter 1
　self-assessment
unit 56
　lesson 1 chasing money
　lesson 2 interview
　lesson 3 twice lucky chapter 2
　self-assessment
unit 57
　lesson 1 missing in action
　lesson 2 communication in style
　lesson 3 twice lucky chapter 3
　self-assessment
unit 58
　lesson 1 the two sides of jack
　lesson 2 society today
　lesson 3 twice lucky chapter 4
　self-assessment
.unit 59
　lesson 1 the job
　lesson 2 sports
　lesson 3 twice lucky chapter 5
　self-assessment
unit 60
　lesson 1 scoop!
　lesson 2 possessions
　lesson 3 twice lucky chapter 6
　self-assessment
unit 61
　lesson 1 snoop
　lesson 2 the cost of the commercial
　lesson 3 twice lucky chapter 7
　self-assessment
unit 62
　lesson 1 puzzle pieces
　lesson 2 review
　lesson 3 twice lucky chapter 8
　self-assessment
unit 63
　lesson 1 true colors
　lesson 2 travel report
　lesson 3 twice lucky chapter 9
　self-assessment
answers to the sell-test
transcriptlons
trrregular verb table
glossary
pronunciation table
grammar codes and abbreviations