任务描述：根据示例，以德飞莱实验板为例，实现点亮LED2，其他LED熄灭。
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任务描述：根据示例，以德飞莱实验板为例，实现点亮LED1，其他LED熄灭。
任务描述：根据示例，以德飞莱实验板为例，实现点亮LED3，其他LED熄灭。
Which statement is not for asking the direction in a city?
A. Can you show me the way to the railway station?
B. How can I get to the park?
C. I'm fine Where is the nearest bus stop?
D. I’m looking for the conference room.
Which word is only used on the road?
A. traffic lights
B. take the lift
C. upstairs
D. on the fifth floor
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