Matching Pairs A&C1. U2. Activity 18Online version Match each sentence on the left with its definition on the right. by Carmen Martínez 1 In the middle 2 The background 3 At the top 4 The foreground 5 At the bottom 6 Corner Central, in the centre. The lowest part. Things that are the nearest to the viewer. Things that are far from the viewer, at the back. Angle, side, edge. The highest part of a painting.