Ответ:

1

a) was

b)was,when,were

c)were,while,were

d)was,when

e)Were,when

2

1)You weren't studying when I called you

2)I was listening to the radio so I didn't hear the alarm

3) While we were sleeping in the tent last night,someone stole our axe

4)While they were eating dinner he got back home

5)At midday we still were driving

3

1)Yes,I was preparing

2)No,he wasn't playing the guitar

3)Yes,she was watching her youngest brother

4

1)You weren't listening when i told you to turn off the oven

2)When John was sleeping last night, someone stole his car

3)Sammy was waiting for us,when we dropped off the plane

4)When I was writing an email ,the computer unexpectedly turned off

Объяснение:

Если не ошибаюсь то вот)