Unit 1 Are you Mr.Johnson from New York? Unit 2 What kind of room do you prefer? Unit 3 May I have your order now? Unit 4 Welcome to Wal-Mart! Unit 5 I've got to mail some urgent documents Unit 6 I have to take a make-up exam in computer class Unit 7 You can't have your cake and eat it too Unit 8 Now we have SO many electronic journal titles Unit 9 My first self-driving tour is SO screwed up! Unit l0 It isn't rush hour Unit 11 Can l have a window seat? Unit 12 I,d like to book a booth Unit 13 I'd like to propose a toast to your health Unit 14 Can I leave you a message? Unit 15 Packages are “silent salespeople” Unit 16 Do you have an E-mail address? Unit 17 My laptop has a virus Unit 18 What's WAP? Unit 19 Are you looking for a new car? Unit 20 Will it be expensive to build up a gene bank? ……