Answer:
1) when we get home, we are going to have (have) dinner.
2) I know they will feel (feel) very happy if they win the match.
3) the weather forecast is good for the next few days. it is going to be (be) very sunny.
4) i cant come on the march tomorrow i am going to look after (look after) my cousins.
5) in the future, i think humans will wipe out (wipe out) many different species.
6.He is buying some butter and eggs because he is going to make (make) a cake later.
7.This homework is very easy. I know we will do (do) it very quickly.
8. In five years time, I will be (be) at university.
9. She wants to get her mum a birthday present. But she will not buy (not buy) it today.
10. Their suitcases are packed. They will go (go) on holiday.