I hear a number of workers in the factory _____ out of work

I hear a number of workers in the factory _____ out of work I hear a number of workers in the factory ___ out of work --- I hear a number of workers in the factory ______ out of The number of workers in this factory _____ 1,500. The number of workers in this factory ____ 1,500. A number o 英语单项选择1.________ number of the workers in this factory _____ A number of workers in this factory _____ Party members,and ()the workers in this factory is 1000.A A number of B A smal The number of workers in this factory _______ a lot this yea 23.In our factory _____ of the workers _____ from Jiangxi.A. The number of the workers in the factory ___________ about t The number of  the workers in this factory