Therearefiveworkersintheroom,sixthoneiscoming.A.man,aB.woman,theC.men,aD.ten,and答案是C,请问后面的空为什么填a而不填the?

Question

There are five ___ workers in the room, ___ sixth one is coming.
A.man , a B.woman , the C.men,a D.ten,and
答案是C,请问后面的空为什么填a而不填the ?

Answer 1

5个工人是复数,所以选 men
房间里有5个工人,第六个（工人）正走进来了.
这里的第六个人（工人）不是特指的,所以用a
如果是特指的,就可以用the
the 可以表示特指