单项选择题

For some people, it may be better （）

A．to wear a seat belt for health reasons
B．not to wear a seat belt for health reasons
C．to get a valid medical certificate before wearing a seat belt
D．to pay a fine rather than wear a seat belt

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单项选择题This text is taken from（）

A．a medical magazine
B．a government report
C．a legal document
D．a government information booklet

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.