exercise 1

good afternoon

nice to meet you

see you soon

it was nice meeting you

this is my assistant

exercise 2

conversation 1

Good morning...

Nice to meet you, too.. And my surname is Chen..

conversation 2

and it was meeting you, chen..

goodbye

Ответ:

21-e 24-c

22-d 25-b

23-a

26Good morning 27-to 28-this

29-you 30-Good afternooon