1 Match to make sentences. 1 When America was discovered in 1492, 2 Our new house is being built in such a way 3 While the beach was being cleaned, 4 Their city has been given 5 Recycling of paper had already been introduced 6 The glass is first 7 The old, disused airport will be
1-g,2-c,3-f,4-a,5-d,6-b,7-e