起初他拒绝了，但似乎已经改变了主意。

At first he refused, but he seems to have had ___a ___change ___of ___heart.

改变主意后，她决定留下孩子。

After ___a ___change ___of ___heart, she decided to keep the baby.

政府在环境政策上的改变让所有人都感到惊讶。

The government's ___a ___change ___of ___heart on environmental policy surprised everyone.