The key to exercise solutions in chapter 3c - Grammar in use for the textbook On Screen B1+/B2 - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Identify the tenses in bold (1-6) then match them to their uses (A-F). Check in the Grammar Reference.
Identify the rest of the past forms in the text. How is each used?
Answer
a)
past perfect continuous C - (had been + verb -ing)