試題詳解

50 Which of the following statements can be inferred from the passage?
(A) Knocker-ups preferred to get into the houses of their clients’ to wake them up.
(B) Antoine Redier made a fortune by selling mechanical alarm clocks to workers.
(C) British workers greatly appreciated Levi Hutchin’s invention of the alarm clock.
(D) Police officers during the Industrial Revolution were not paid very well at work.