3. a) complete the questions with is, do, does. model. when is your birthday? 1. when is your birthday? 2. you usually have a birthday party? 3. where you usually have a birthday party? 4. who you usually invite to your birthday party? 5. your mum make a birthday cake for you? 6. your best friends usually make presents or buy pre-sents for you? 7. your friends give you birthday cards? 8. your granny and grandad send you a birthday card9. what you usually do at your birthday party? ​