Theo mình là vầy
1. The date of the meeting have been changed
2. Mary spent 2 hours travelling to the countryside last week.
3. I used to go to swimming after school every afternoon when I was a school boy
4.Ba wishes he had gotten a good mark at Math today.
5. Lan got up late, so she missed the bus this morning
6. Because I haven't been invited, I'm not going to the party
7. I don't cook better than my sister.
8. this exercise is too difficult for us to do
9.Because today is Sunday, the children don't have to go to school