【题目】Watching me playing various tricks to stop the baby crying，the mother fought hard to________her laughter.
A.hold back
B.take off
C.carry on
D.turn down

【答案】A
【解析】hold back阻止；take off脱下；carry on继续；turn down调低。句意：看着我使出浑身解数不让婴儿哭，妈妈尽力忍住笑。故选A。