There is one wrong word in each sentence. Correct them.

1. Many poems are around 300 pages.
    
2. Cinema grew in popularity in the first half of the 20th year.
    
3. I enjoy science fiction because I like stories about the past.
    
4. What’s happening at the cinema?
    
5. We went to see the film because there was a good article in the newspaper.
    
6. I’ve been reading a new autobiography of Alfred Hitchcock by Donald Spoto.
    
7. Comedies should make people frightened.