Mysterious English

This is a free game, when players replace all the question marks by letters， he will understand the meaning of all the words in the puzzle, and more importantly, in order to understand the puzzle which is a picture actually, the player can find the answer in these words, the mysterious point is that each puzzle contains an English sentence, do you know what it is? Come and try it out.
When you repeat it, you never forget it.
Something changed.