20. Are you interested in listening to pop music ?
B.
1. Minh went to the dentist yesterday because he had a bad toothache.
2. He had an appointment at 10:30.
3. They travelled to the USA by plane last month.
4. They are practicing English at the moment.
5. The dentist filles a cavity in his tooth last week.
6. Most of children feel scared when they come to see the dentist.
7. The dentist looked at his teeth and told him not to worry.
8. Nga brushes her teeth three times a day.
9. She went to the doctor because she had a backache.