About _____of the workers in the factory wre born in the ______.A.two-thirds;1970 B.two-thirds;1970sC.two-third;1970 D.two-third;1970有横线为什嘛还加s啊?

问题描述:

About _____of the workers in the factory wre born in the ______.
A.two-thirds;1970 B.two-thirds;1970s
C.two-third;1970 D.two-third;1970
有横线为什嘛还加s啊?