Matching Pairs SynonymsOnline version 2-6 Summary practice exercise by Rose Middlehurst 1 It opens a window onto... 2 characteristic 3 discusses 4 unique 5 It was the most expensive book ever sold. 6 challenged 7 earliest example 8 old 9 remarkable 10 protect 11 exhibited 12 avoid 13 He wrote about... 14 consisting of 15 controversial 16 a characteristic noteworthy confronted In the book there was information on ... individual early prototype one of a kind The book had the highest price on record. a trait dangerous aged It allows us to see... keep safe talks about made up of escape displayed