The key to exercise solutions in chapter 6f - Writing for the textbook On Screen B1+ - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Which of the phrases / sentences in bold in the email: express a result? gives advice?
Replace each with an alternative from the Useful Language box.
Answer
The best thing to do is to / If I were you / you could = gives advice; This way / Then = expresses a result
The best thing to do is to = You should; If I were you = Perhaps you could also; You could = Why don't you... ?; This way = If you do this; Then = By doing this