II. Correct the verb forms then change into negative and interrogative:1. My father (decorate)the Christmas tree.2. She (buy),a new dress yesterday.3. They (be).in Huc last year.4. Mr. Tam (take)his children to the museum last Sunday.5. Hoa (make)a cushion for her armchair6. They (paint)their house yellow7. This dress (be)fit8. We (do)our homework two hours ago.9. He (see)a movie last Saturday evening.10. There (be)a small bridge ten years ago.11. Hoa (like)her new skirt.12.My mother (drink)coffee every morning.13.Boris can (speak)Spanish14. Walking (be)a good sports activity,15.Nam (write)a letter to his mother in the library now.