4.Cut the apple into halves so that the twins may each get (B)half.

问题描述:

4.Cut the apple into halves so that the twins may each get (B)half.
A.each B.either
为什么不选a啊

either有两者中任意一个的意思
each是每一个的意思
这句话的主要指这对双胞胎能选任意一半的苹果,所以选either