1.She taught some friends her Vietnamese
2.Where did you stay when you were in Hue?
3.Would you like to come to my house for dinner?
4.Brushing your teeth is very important
5.I often wash and iron my own clothes
6.I received a letter from my uncle last week
7.They gave the nurse to their medical records
8.Hoa didn't go to school last Wednesday
9.I had a bad cold last week
10.The doctor will write sick notes for them
11.Most children feel scared when they came to see the doctor
12.The dentist looked him and told not to worry at his teeth