单项选择题

Questions 19 to 21 are based on the conversation you have just heard.

A．A more economical diesel fuel.
B．Characteristics of a new type of fuel.
C．Where a new energy source is located.
D．How to develop alternative energy sources.
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单项选择题
What’s the purpose of writing the article
A．Offering readers information about sports activities.
B．Persuading readers to try cheap ways of exercise.
C．Attracting potential athletes to register for sports events.
D．Asking people to donate in order to develop public sports.
单项选择题
A．In the side street.B．At the crossroads.C．On the main road.D．On the motorway.
A．In the side street.
B．At the crossroads.
C．On the main road.
D．On the motorway.
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