Correct the wrong ones. 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.
77.4 These binomials do not have and in the middle. What do they have? Check the opposite