Take the underlined word from the sentence in the proceeding post and replace it with another word while retaining the sentences meaning. Then use your new word in a different sentence for the next person. Example, if there was a post previous to this with the sentence: "One small step for man." I might reply with: "One small tread for man." "Check the tread on your tyres." Ok, lets start... Check the grooves on your tyres. No member may post a response if he or she has posted the challenge or the post preceding the challenge.