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) Before Jim finally decided to go to Thailand, he ____________ about it for months. (think)
2) Scarlett came into the room panting. She __________ round the park. (jog)
3) Chef Jones ______ the restaurant's fantastic dinners for two years before he moved to Paris. (cook)