unit 1. explaining and requesting
1 ǥ 2 û ǥ
unit 2. making an offer
3 ǰ 4 ³ ǥ 5
unit 3. answering for the request
6 ǥ 7 ڷ ÷
unit 4. placing an order
8 ֹ 9 ֹ Ȯ 10 Ȯ
unit 5. asking for additional information
11 뿡 ȸ 12 ߰ û
unit 6. complaining of the disappointment
13 Ҹ ǥ 14 ǥ 15 ˱ ǥ
unit 7. replying for a proposal
16 ǥ 17 ȿ ȸ
unit 8. checking the status
18 Ȳ ľ 19 ŷ Ű ǥ 20
unit 9. rejecting for the order
21 ǥ 22 û
unit 10. introducing
23 24 Ұ 25 ǥ
unit 11. apologizing for the complain
26 ǥ 27
unit 12. making travel plans
28 ȹ 29 湮 û 30
unit 13. reminding the request
31 ȸ ˱ 32 û
unit 14. discussing a travel
33 ȸ翡 Ұϴ ǥ 34 Ⱥ 35
unit 15. explaining problems
36 Ǽ 37 ǵ ǥ
unit 16. seeking recommendations
38 ֱ 39 40 õ û
unit 17. inviting
41 ʴ ǥ 42
unit 18. replying to the question
43 û 44 ǥ 45 湮 Ȯ û
unit 19. canceling an appointment
46 47
unit 20. answering for the invitation
48 ʴ뿡 亯 49 ʴ 50 纻 ߰ û