... Ba often go to the beach for two or three days. They always go to Vung Tau in the south of Viet Nam. They usually stay in a small house or a flat by the sea, but sometimes they stay in a hotel. ... dentist filled a cavity in her tooth last week. 6.Hoa had a toothache. III. Put the following verbs into the right column based on the “ed” sound: Wanted, fitted, needed, helped, stopped, talked, ... sentences into the negative form and the interrogative form . 1.She went to school yesterday. 2. She was 13 last month. 3. They were his friends. 4. My father visited Hue last week. 5. The dentist...