Relier Pairs Vocabulary Unit 7 Matching GameVersion en ligne Test your knowledge of Vocabulary Unit 7 concepts with this fun matching pairs game! par Maria Florencia Mena 1 Upgrade 2 Behind the times 3 Spare parts 4 Affordable 5 Ahead of its time 6 Experimental 7 Innovative 8 Compatible 9 Tried and tested Late, old. Something considered too advanced or modern to be understood or appreciated during the time To improve the quality or usefulness of something Something inexpensive; reasonably priced. Something that is able to exist or occur together without problems or conflict. Something featuring new methods; advanced and original. Something based on untested ideas or techniques and not yet established or finalized. Something that was proven in the past to be effective or reliable A duplicate part to replace a lost or damaged part of a machine.