2 . He used to work in the administration department and the sales department. (变成否定句)

3 . I am fascinated by management and sales work. (变成否定句)

4 . Which of the following occupations do you like: chef, butcher, librarian, operator, physician, dentist, or clerk? (变成否定句)

5 . All receptionists came out to meet the guests. (变成否定句)

7 . Every architect is willing to design the building. (变成否定句)