1.The baby(cry)........... for half an hour before his mother(wake up).............
2.She(fail).............. the exam althought she(study)..............German for 2 years.
3.Obviously the boys(smoke)..............before I(enter).........because the room was full of cigarett smell.
4.The band(play)........ for more than an hour before the people(start)................to throught tomatoes of them.
5.He(be)...........absolutelly warned out that morning because he(drink).............. heavily all night.
6.I(realise)..............someone(use)...........my camera because their were finger marks on the lense.