Tag questions. Choose the correct form.
1. You are a doctor, _____  don’t you?  aren’t you?  doesn’t you?  are you? 2. She can play the piano, _____  can’t she?  can she?  couldn’t she?  doesn’t she? 3. They didn’t come, _____  do they?  doesn’t they?  did they?  didn’t they? 4. He doesn’t have to work tomorrow, _____  does he?  has he?  doesn’t [...] MORE