1. was having
2. have traveled
3. has not began
4. is running
5. invited - have not came
6 is cleaning
7. began
8. made
9. is cooking
10. going

1 were having
2has traveled
3won't begin
4is moving
5didn't inviteb -didn't come 
6is cleaning
7has begun
8has had
9is skipping
10 to go 
11 has seen -left
12is- don't play
13didn't leave
14 have seen
 

 1. I (have)             was having             dinner when his friend called.

      2. Joan (travel)     has traveled                         around the world.

      3. We (not begin)       won't begin                   to study for the test yet.

      4. Don’t get on a bus while it (run)    is running                               .

      5. I (invite)                invite                    them to my birthday party yesterday, however, they (not come)  did'n   .

      6. Look! Somebody (clean)         cleaning                          the room.

      7. My brother (begin)                 has begun              looking for a job in January.

      8. Timson (make)        has maked                 13 films and I think her latest is the best.

      9. She (cook)              is cooking                   at the moment. That’s why she can’t answer the phone.

      10. She doesn’t mind (go)         to go                out in the evening.

      11. I (not see)                 haven't seen               him since we (leave)            left              school.

      12. Football (be)                      is     my favourite sport. I like (play)                  play             it in my free time.

      13. Jane (leave)      leave                       just a few minutes ago.

            14. She (be)                has been             extremely quiet since her husband died