Jenny had to _____her voice ______when her child was sleeping.A.keep,up B,keep,down C.keep,off D.keep ,on
问题描述：
Jenny had to _____her voice ______when her child was sleeping.
A.keep,up B,keep,down C.keep,off D.keep ,on
答
选b，keep ...down 是保持。。。在较低状态的意思
翻译：在她的孩子在睡觉的时候 ，珍妮不得不控制她的说话的音量
答
B,keep,down
降低
睡觉的时候应该降低音量