Chose the appropriate form of the verb. 1. i was sure that i saw / had seen their sales representative before. 2. he denied that he took / had taken money from the office. 3. the gentleman told me that he lost / had lost his ticket and didn’t know how to get home. 4. the professor guessed that some of the students had cheated / cheated in the exam. 5. at the conference the presenter claimed that found / had found a brand-new strategy. 6. she took my report before i finished / had finished it. 7. during the previous week i had been / went to the lectures every evening.