Составьте предложения с конструкцией:I am going to
1)on your next birthday
2)on your last day of school
3)the next time you go shopping

1. On my next birthday, I’m going to have a costume party.
2. On my last day of school, I’m going to give small presents to my classmates.
3. The next time I go shopping, I’m going to buy a swimming suit.