单项选择题

Questions 17 to 20 are based on the following report. You now have.20 seconds to read Questions 17 to 20.
What should be done to get the situation under control

A. Calling ambulances.
B. Using a van.
C. Callingthe police.
D. Taking extreme measures.

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单项选择题

Questions 17 to 20 are based on the following report. You now have.20 seconds to read Questions 17 to 20. What should be done to get the situation under control 您的浏览器不支持 audio 元素。