luyện kỹ năng viết thư tín thương mại - writing for business

...The book has been very carefully organised to give systematic presenttion and practice of the main functional patterns used in writing the most common forms of business letters. Each unit is task based and deals with a small number os functions. Students are given extensive graded praded practive in writing full letters. An answer key is provided for many of the exercises so that the material is suitable for use either by a teacher with a class or by students studying on their own..