`text{19. b going/fun}`
`text{20. b agrees}`
`text{21. b doesn't it}`
`text{22. c used to work}`
`text{23. d aren't they}`
`text{24. b neither is she}`
`text{25. c at}`
`text{26. a of}`
`text{27. b to}`
`text{28. c others}`
`text{29. b tea, please}`
`text{30. d here it is}`
