Выбрать правильное вариант
1. The burglar HAD ALREADY LEFT/ALREADY LEFT by the time the police HAD GOT/GOT THERE
2.Someone HAD CALLED/CALLED the police before I arrived
3. When I heard, I HAD RUN/ran to help
4. I HAD BEEN SITTING/HAD SAT here for 20 minutes before is heard the bang
5. I didn't see the detective because he HAD LEFT/LEFT when I arrived
6. The burglars HAD BEEN LOOKING/HAD LOOKED for something, that's why they turned everything upside down