He became__King.A.a B./ C.the Heturned__teacher.A.a B./ C.the 请高手讲明原因,3

He became__King.A.a B./ C.the Heturned__teacher.A.a B./ C.the 请高手讲明原因,3
He became__King.A.a B./ C.the Heturned__teacher.A.a B./ C.the 请高手讲明原因,3

He became__King.A.a B./ C.the Heturned__teacher.A.a B./ C.the 请高手讲明原因,3
你好.答案是
1 He became a King.
2 He turned / teacher.

He became a King. 不是a就是the, 用a是因为King的前后都没有定语修饰，也没有上下文说是哪儿的King, 用a就好了。因为King是可数名次，所以不能选B。

He turned out (to be) a teacher. =He became a teacher. =他成为了一名老师。我认为这样才对，你的那句没见过。