25. She went to the dentist last week.26. Yes, she did.27. She saw many cavities in Lan's teeth.28. Because her teeth stopped hurting.29. Brushing your teeth is very important.30. Nga likes to watch programs about teenagers in other countries.31. Lan had a bad cold last week.32. I have to finish my homework before I play table tennis.33. The children were very excited about their trip last Sunday.34. Don't spend too much of your time on the arcade.35. You ought to help your mother with the housework.36. Vegetables often have dirt from the farm on them.Câu trả lời: 25. She went to the dentist last week.26. Yes, she did.27. She saw many cavities in Lan's teeth.28. Because her teeth stopped hurting.29. Brushing your teeth is very important.30. Nga likes to watch programs about teenagers in other countries.31. Lan had a bad cold last week.32. I have to finish my homework before I play table tennis.33. The children were very excited about their trip last Sunday.34. Don't spend too much of your time on the arcade.35. You ought to help your mother with the housework.36. Vegetables often have dirt from the farm on them.