The solution for exercise Grammar 2 in chapter 01 - Language focus 2 of Cutting Edge Upper-Intermediate - Student's Book by Sarah Cunningham, Peter Moor and Jonathan Bygrave
Question
Which auxiliaries in exercise 1 are used to.
Answer
isn't it; will you (Reminder that negative sentence = positive tag question, positive sentence = negative tag question. )
we do (Auxiliary verbs can be used in positive sentences to add emphasis.)
are you (Reminder that the level of interest is shown in the intonation. Here, the very high rising tone shows great interest and surprise.)
he is; I have (Students will know this very basic usage of auxiliary verbs.)
he is; I have; are you; she will (Ask students to give you the complete sentence for the first example, i.e. He says he is interested. Do the same for the others if necessary.)