单项选择题

Overhead bridges are built ______.

A．for heavy traffic
B．for the safety of people
C．for the safety and convenience of drivers
D．to help traffic
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单项选择题
In paragraph 2, Business is definitely off refers to ______.
A．there are no more businesses
B．restaurants have to close very early
C．pubs have to close very early
D．business is affected by anti-smoking laws
单项选择题
Which of the following statements is NOT true
A．In the past, restaurants had to provide a non-smoking section.
B．Anti-smoking laws are not bad for the business of restaurants and pubs.
C．Later, it's even harder for a smoker to find a place to smoke in public place.
D．Nowadays you are not allowed to smoke at the entrance of a restaurant.
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