The key to exercise solutions in chapter 6.4 - Speaking and writing for the textbook Navigate Intermediate B1+ - Workbook with authors Edward Alden and Mike Sayer from Oxford University Press
Question
Four of these phrases are usually used in formal situations. Underline them.
Answer
b I'm available then.
4 I'll confirm it with you.
e I'm not available then.
7 Our arrangements have changed. I'm afraid.
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