如果你改变主意，不用担心。

Don't worry if you ___change ___your ___mind.

如果你改变主意，直接告诉我就好。

If you ___change ___your ___mind, just tell me.

起初我不想去，但看了照片后我改变了主意。

At first I didn't want to go, but I ___change ___my ___mind after seeing the photos.