单项选择题

How many people in front of the vehicles are killed or seriously injured every year

A．30,000.
B．60,000.
C．Approximately 30,000.
D．Above 30,000.
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单项选择题
According to the text, which of the following people riding in the front does NOT have to wear a seat belt
A．Someone who is backing into a parking space.
B．Someone who is picking up the children from the local school.
C．Someone who is delivering invitation letters.
D．Someone who is under 14.
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