问题
单项选择题
Since we can't hear you at the back of the hall, you'll have to ______ your voice.
A．lift
B．increase
C．speak up
D．raise
答案
参考答案：D
解析：raise one's voice。“提高嗓门”；speak up“大声说”，不再接voice；lift和increase不与voice搭配使用。