A1 match the words on the left and the engings on the right 1) class. a. -ing 2) understand. b. -mate 3) impress c. ion 4) relation. d. -ship a2 match the words on the left and the engings on the right 1) ti give. a. quarrels 2) to feel b. advice 3) to look. c. upset 4) to avoid d. smart