8. What Caused the Accidents?

Now you have a chance to re-read all accidents presented in this Unit again. Your task is to decide what the accident were caused by. Tick all correct answers in this quiz. It is intended to both revise this unit and introduce the topic of the follow-up unit. In other words, Unit 10bc will deal with possible causes of accident in more detail. It will speculate about the past events and give some recommendations in the form of conditional sentences.