35. As I . dishes (wash), the phone . (ring)
36. Be quiet, I . to concentrate. (try)
37. Jane . many books about Chinese culture. (write)
38. She . her first book in 1990. (write).
39. She . currently . a book about Chinese painting. (write)
40. My parents . married 20 years ago. (get)

35 I was washing the dishes when the phone rang.36 Be quite, I am trying to concentrate. 37 Jane has written many books about Chinese culture. 38 She wrote her first book in 1990.39 She is currently writing a book about Chinese painting. 40 My parents got married 20 years ago.