1
1 She's going to read it ...
2 I'll have coffee ..
3 I'll video it for you.
4 What newspaper are you going to buy?

2
1 It's going to attack (bite) us (me).
2 I think aliens will land on the earth.
3 I heard she's going to get married.
4 I'll invite her for a meal.

3
1 We're going to build
2 will be finished    /   is going to be finished
3 will like   /   are going to like
4 will be for young families  /  are going to be for 
5 we aren't going to cut down /   we won't cut down
6 we're going to have 
7 will be there  / is going to be there
8 we're going to stop  /  we'll stop