Fill in the gaps with the verb in brackets using the past perfect continuous.
example: sam gained weight because he for 2 years. (overeat)
answer: sam gained weight because he had been overeating for 2 years.
1) the forensic evidence shows that he his nose just before he was murdered. (pick)
had been picked
had been picking
has been picking
2) we there for more than two hours when she finally arrived. (wait)
had been waiting
had been waitting
have been waiting
3) chef jones the restaurant's fantastic dinners for two years before he moved to paris. (cook)
had been cookeing
had been cooking
has been cooking
1) The forensic evidence shows that he had been picking his nose just before he was murdered.
2) We had been waiting there for more than two hours when she finally arrived.
3) Chef Jones had been cooking the restaurant's fantastic dinners for two years before he moved to Paris.