Task 18. Choose one of the following situations a) or b) to write a letter of apology. Mind the useful language given below

a) Imagine that you are a young scientist. You conduct a scientific experiment with a senior colleague, your scientific adviser, who asked you to process the results of the experiment to present them at the international conference. You were terribly short of time and interpreted some data incorrectly. You discovered your mistake when your boss had already left for the conference. Write a letter of apology to him.

b) Imagine that you are a member of international research team. You have a detailed plan of work, but due to some reason you can’t complete your part of the work in time. Write a letter of apology to the manager of the project explaining the reason for being behind the schedule and negotiate a new deadline.