我不得不把我买的衬衫换成更大号的。

I had to ___change the shirt I bought for a bigger size.

如果鞋子不合脚，你可以换成小一号的。

If the shoes don't fit, you can ___change them for a smaller size.

她决定把那件裙子换成另一种颜色。

She decided to ___change the dress for a different color.