2.
1. in
2. off
3. on
4. of
5. up
3.
1. A: I am going to see
B: I will take
2. A: You are going to get home
B: the train will arrive
3. A: we all will own
B: it is going to happen
4. A: we are going to meet
B: he will be
5. A: I am going to study
B: You will enjoy
В остальном я либо не знаю, либо не уверенна, простите