【听听测测】Model Test 37

2 What are the two speakers¹ doing? 

[A] Walking down a hill 

[B] Climbing stairs 

[C] Discussing a trip 

1 speakers   

n.扬声器( speaker的名词复数 )；演讲者；议长；说某种语言的人

参考例句：

• an impressive line-up of speakers 给人印象深刻的演讲者阵容
• All the speakers hook up to a single amplifier. 所有喇叭都接在单一的扩音器上。 来自《简明英汉词典》