Ребят помогите !) 
Выражай ту же мысль по-другому: 
Exlample : He is going to have a meeting 10 o'clock tomorrow.
                 He is having a meeting at 10 o'clock tomorrow. 
1. The plane is going to arrive half an hour later. 
2. My friends are going to come to Moscow for the weekend.
3. My grandparents are goig to move into a new flat next week.
4. When are they going to arrive?
5. She is going to leave for St. Petersburg in two days.