Change these sentences into passive?

1, To a certain extent, the entertainment industry is dictating popular culture

=>To a certain extent,popular culture is being dictated by the entertainment industry

2, People should avoid the new Broadway play Star Memories

=>The new Broadway play Star Memories should be avoided

3,In the USA, people have void cinema-going as the most popular weekend hobby

=>Void cinema-going is had as the most popular weekend hobby in the USA

4, People know that the entertainment industry is very competitive

=>The entertainment industry is known to be very competitive

5, People regard Hollywood as the most influential town for film making

=>Hollywood is regarded as the most influential town for film making

6, At the beginning of the 20th century, large film companies contractually restricted famous actors and atresses

=>At the beginning of the 20th century,famous actors and atresses were contractually restricted by large film companies

7, In relation to the plot of the book, someone had changed the ending of the film

=>In relation to the plot of the book, the ending of the film had been changed

8, Someone told us to sit seats 4a and 4b

=>We were told to sit seats 4a and 4b