Key to Test 23: Collective nouns 23.1 1 flock, herd 2 shoals 3 swarm 4 packs 5 gang, team 6 crowd, group 7 pack/deck 23.2 1. 1 a range of hills, a clump of trees 2. a pair of chimneys 3. a set of drums 4. a stack of papers 5. a row of houses (= terraced houses) 23.3 1 staff 2 crew 3 cast 4 public 5 company