with the improvement of peoples living conditions ,most mothers__in hospitalsA.have delivered their babies B have born their babiesC.have their babies born D.have their babies delivered选D 为什么?
问题描述：
with the improvement of peoples living conditions ,most mothers__in hospitals
A.have delivered their babies B have born their babies
C.have their babies born D.have their babies delivered
选D 为什么?
答
随着人们生活条件的提高，大多数母亲选择在医院生小孩，这里的deliver为接生，而孩子是被接生的所以应该有被动，A错，born出生，应为孩子自己主动发生，C使孩子在医院出生错，have done完成时时态错误，A,B错
答
have+宾语+过去分词宾补,表示“让宾语被（其他人）做某事”
让婴儿被（护士医生）接生