The key to exercise solutions in chapter 7d - Listening skills for the textbook On Screen B1+ - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Read the examples. How do we form question tags?
Complete the question tags. Listen and tick. Listen again and repeat.
Answer
We form question tags with the auxiliary verb or modal verb of the main sentence and the appropriate subject pronoun. When the sentence is positive, the question tag is negative and when the sentence is negative the question tag is positive.
1) can't he (confirmation); 2) isn't he (confirmation); 3) doesn't he (confirmation); 4) didn't they (information); 5) hasn't he (information); 6) did she (information); 7) won't he (information); don't they (confirmation)