My poor English ''Hello Mary!It's Susan! I should have rung you before now,but I have had to work so hard at the office that I didn't have the time.My boss is going on holiday tomorrow and he wants me to arrange everything before he leaves.If he had given me sensible instructions I could have done the work next week. But you must have the same problems with your boss.Anyway, I have been given two tickets for the new play at the Grand Theatrevon Saturday.Shall we go and see it together?'' ''Oh Susan!I am terribly sorry.I hate to let you down ,but i am booked up on Saturday.''