IX/
1/How often does Minh brush his teeth?
2/Why is Simon in a lot of pain now?
3/How did you feel after eating that food?
4/When did Nga go to see the dentist?
5/How long did it take Dr Phong to fill Van's tooth?
X/
1/I prefer Listening to music to watching TV
2/What is weight is the chicken
3/If I were not busy to night , I would go to the party
4/You'd better not to forget to write to your parents
5/Although it rained hard this morning, we went to school early
6/He advised getting get up early everyday
7/Because of the heavy rain, the boys had to stop playing soccer
8/The heavy rain prevented us from enjoying the trip
9/You had better not eat too much candies
10/Because Lan was sick she didn't go to school yesterday
XI/
1/Ba went to school on foot a week ago
2/My father is a mechanic . He works at the factory in the suburb
3/Last night we did homework at 7.00 and went to bed at 9.30
4/We used to walk to school in the morning returned home at noon
5/ I call to tell you that we will come and visit you next weekend
xin hay nhất ạ