13. A
14. D
15. C
II.
1. won't dump (conditional type 1)
2. will be watching (keyword: at 9.00 tonight -> future continuous)
3. was destroyed (passive voice- past simple)
4. had left (keyword: by the time-> past perfect)
5. to turn (forget + to V
6. using (enjoy +V-ing)
7. communicating (dislike +V-ing)
8. will be having (keyword: at 6p.m next Saturday -> future continuous)
9. were watching, heard
10. had met (reported speech-> one tense back: present perfect -> past perfect)
11. had seen, went (describe action happen before another action which happen in the past)
12. has become (keyword: sine -> present perfect)
13. would happen (conditional type 2)
14. will create (keyword: in the year 2050 -> future simple)