It ________ be the postman at the door. It’s only six o’clock.

．She is fed up with sharing a house with others; , she is looking for her own flat.

h years of hard work, Mrs Smith, who ____ as asecretary for five years, is general manager of the company now

We haven’t seen basketball star Jordan for a long time.—He ________ the stage last year.

Thanks to your help, ________ I would not have completed the task on time