. She is a kind-hearted woman and often has _ mercy _ people who are in trouble.A．a; onB．\;

题目简介

. She is a kind-hearted woman and often has _____ mercy _____ people who are in trouble.A．a; onB．\;

. She is a kind-hearted woman and often has _____ mercy _____ people who are in trouble.

A．a; on

B．\; on

C．a; o

D．\; to

题型：单选题难度：偏易来源：不详

考查介词，短语：对某人表示仁慈 have mercy on sb ，句意：她是一个好心的女人经常对那些陷在困境中的人们表示仁慈。所以选B。