Here are the completed sentences with the correct participle forms:
1. The ending of the film was disappointing because it did not answer the main question. 2. I'm surprised that you didn't recognise her. You've met her before, haven't you? 3. I was really interested in the story of the main drama series. 4. The plot of the movie was confusing, and I couldn't follow the story. 5. I was very excited to see the...