用hold短语的正确形式完成句子
The freezing rain _______ (阻碍) the traffic of Guizhou on
January 4th, 2011.
The line was engaged and the operator asked if I’d like
_________ (不挂断电话).
He ________（伸出） his hands, and the cat came up to him.
These measures helped to __________（控制） the city’s
population.