Page 342 - Word Power Made Easy: The Complete Handbook for Building a Superior Vocabulary

(a) evolutionary, (b) revolutionary, (c) ventricular

16. To shout vehemently:
(a) endorse, (b) perambulate, (c) vociferate
17. Like an uncle:

(a) ventricular, (b) auricular, (c) avuncular
18. Drowsy:
(a) somniferous, (b) somnolent, (c) soporific

19. Sleepwalking:
(a) insomnia, (b) somnolency, (c) somnambulism
20. Introduction:

(a) preamble, (b) perambulator, (c) evolution