Exercise 4: Complete the sentences with tag questions. 1. I am making a big mistake,                  ? 2. Let’s go shopping at Saigon Coop Mart,                 ?   3. Children should drink a lot of milk and fruit juice,                  ?   4. Bring your camera with you to the party,                 ? 5. These shoes need to be fixed,                 ? 6. You must ask for your parents’ permission to join the trip,                  ? 7. Ba likes healthy food,                 ? 8. Thu didn’t take part in the competition,                  ? 9. Phong hasn’t been to Hanoi before,                 ? 10. She can ride to school by herself,                 ?