Choose the right variant. write down the answer as shown in the example.
example: 1a 2b 3c 4d
1. we when somebody on the door.
a. were talking / was knocking
b. had been talking / knocked
c. were talking / knocked
d. had been talking / had knocked
2. ian at the factory long when he a manager.
a. was working / had been made
b. had been working / was made
c. had been working / made
d. had worked / made
3. sally for two years when she the race.
a. trained / entered
b. was training / was entering
c. had trained / had entered
d. had been training / entered
4. jimmy out of breath because he
a. had been / was running
b. was / was running
c. was / had been running
d. had been / had been running