Exercise 6. Turn the sentences into the negative and interrogative form. 4. They ate noodles two hours ago. We always had a nice time on Christmas holiday in the past. 6. My father decorated the Christmas tree. 7. She bought a new dress yesterday. 8. They were late for school. 9. Mr. Tam took his children to the museum last Sunday. 10. Hoa made a cushion for her armchair. ****
