10. as red as …….. A. blood B. a crab C. a lobster D. a shrimp 11. as …… as a fiddle A. fit B. fat C. healthy D. fatty 12. as gentle as a ……. A. dog B. monkey C. chicken D. lamb 13. as sour as ……. A. a lemon B. a lime C. vinegar D. grapefruit 14. shake like a ……. A. paper B. leaf C. branch D. tree 15. as ……. as gold. A. good B. precious C. rare D. expensive 16. as safe as …….. A. buildings B. houses C. schools D. offices 17. as sick as a ……. A. cat B. bear C. pig D. dog 18. as …….as a sheet A. clean B. white C. pure D. simple 19. smoke like a ……. A. chimney B. addict C. snake D. hen 20. as …….. as nails / old boots A. strict B. strong C. stiff D. tough