Past Simple )( Past Perfect
We ( not know) that somebody ( kill) our lovely dog in the house while we were at work
When we (open) the door we couldn't believe our eyes
The burglars thoroughly (search) for something
I ( call) the police
They (arrive) in a few munutes
Just before the police (enter) the house I (hear) some noises upstairs
I (think) it ( be) our dog Bella
Few minutes later the detective( call) me
He (find) Bella in the garden
Somebody (kill) our dog
I (recall) the noises coming from upstairs
If Bella (be) dead, who (be it) then?
When I (come) the burglar (already leave)