The key answer of exercise 12

1

1. are you going to learn
2. Are you going to do / Are you doing
3. it starts
4. you'll enjoy / you're going to enjoy
5. it will be / it's going to be

2

1. you're going
2. We're going
3. you have
4. I'll send
5. I'll get
6. I get

3

1. I’m having / I'm going to have
2. are coming
3. they'll have left
4. they're
5. I won’t be
6. you know
7. I'll call

4

1. shall we meet
2. I'll be waiting
3. you arrive
4. I'll be sitting
5. I'll be wearing
6. Is Agent 307 coming / Is Agent 307 going to come / Will Agent 307 be coming
7. Shall I bring
8. I'll explain / I'm going to explain
9. I see
10. I'll try