Some of the binomials in these sentences are in the right order and some are wrong. Correct the wrong ones. Leave blank if correct.

1. I spent a long time going forth and back between different offices to get my visa. wrong: back and forth
2. You look very tired and stressed. You need some rest and recreation.
   
3. I love those old white and black Hollywood films from the 1940s.
   
4. Later or sooner you will learn that he is not a true friend of yours.
   
5. Gentlemen and ladies, would you like to take your seats now, please?
   
6. Slowly but surely my English got better and soon I felt fairly fluent.